| s star | S twist | s wave |
| s-matrix theory | s-n diagram | s-process |
| S-state | S-type asteroid | S-type magma |
| small arc | small circle | small craft warning |
| small diurnal range | small hail | small ice floe |
| small ion | small magellanic cloud | small perturbation |
| small polaron | small samples | small scale |
| small tropic range | small-angle scattering | small-diameter blast hole |
| small-ion combination | small-scale hydropower | small-scale integration |
| small-signal parameter | smalt | smart tool |
| smear | smectic phase | smectite |
| smectogenic solid | smelter | smelting |
| smith chart | smith forging | smith-baker microscope |
| smith-helmholtz law | smith-mclntyre sampler | smithell’s burner |
| smog | smoke | smoke black |
| smoke box | smoke chamber | smoke consumer |
| smoke detector | smoke hole | smoke horizon |
| smoke point | smoke printing | smoke proof |
| smoke shelf | smoke technique | smoke test |
| smoke washer | smoke-wire method | smoked |
| smokeless powder | smokes | smokestack |
| smoldering | smooth | smooth chert |
| smooth curve | smooth cylindrical rotor | smooth drilling |
| smooth manifold | smooth map | smooth phase |
| smooth sea | smooth surface | smoothed data |
| smoother | smoothing | smoothing choke |
| smoothing circuit | smoothing mill | smoothing plane |
| smoothness conditions | smother kiln | smothered bottom |
| smudge | smudging | smut |
| snagging | snake | snake hole |
| snaking | snap | snap fastener |
| snap hook | snap ring | snap-action switch |
| snap-back forming | snap-off diode | snap-on ammeter |
| snapper | snatch block | snatch plate |
| snell laws of refraction | snifter valve | snivet (electr) |
| snoek effect | snooper scope | snorkel |
| snout | snout | snow |
| snow | snow accumulation | snow avalanche |
| snow banner | snow barchan | snow bin |
| snow blink | snow blower | snow break |
| snow bridge | snow cap | snow cloud |
| snow concrete | snow course | snow cover |
| snow creep | snow crete | snow crust |
| snow crystal | snow cushion | snow density |
| snow dune | snow dust | snow eater |
| snow fence | snow flurry | snow gage |
| snow garland | snow geyser | snow glide |
| snow grains | snow guard | snow ice |
| snow line | snow load | snow mat |
| snow pack | snow pellets | snow pillow |
| snow plough | snow point | snow resistograph |
| snow roller | snow sampler | snow shed |
| snow shed | snow shovel | snow slip |
| snow sludge | snow slush | snow stage |
| snow stake | snow static | snow storm |
| snow survey | snow tremor | snow-cover chart |
| snow-melting system | snowdrift | snowdrift glacier |
| snowdrift ice | snowfall | snowfield |
| snowflake | snowmelt | snowplow |
| snub | snubber | snyder sampler |
| soak cleaning | soaking | soaking drum |
| soaking pit | soap | soap bubble |
| soap bubble test | soap builder | soapstone |
| soar | socked in | socket |
| socket wrench | socket-head screw | soda lake |
| soda lime | soda pulping process | soda-acid extinguisher |
| soda-lime glass | soddy’s displacement law | sodium |
| sodium discharge | sodium discharge lamp | sodium iodide scintillator |
| sodium sulfite process | sodium-graphite reactor | sodium-vapor lamp |
| sodium/sulfur battery | sofar | soffione |
| soffit | soft automation | soft coal |
| soft component | soft electrophile | soft glass |
| soft goods | soft ground | soft hammer |
| soft iron | soft landing | soft limiting |
| soft magnetic material | soft missible base | soft pedal |
| soft phosphate | soft radiation | soft rime |
| soft rock | soft rubber | soft shower |
| soft soap | soft solder | soft soldering |
| soft tube | soft ware | soft waste |
| soft water | soft wood | soft x-ray |
| soft-iron ammeter | softening agent | softening point |
| softening range | sogasoid | sohm abyssal plain |
| sohncke’s law | soil | soil air |
| soil chemistry | soil colloid | soil complex |
| soil conservation | soil creep | soil element |
| soil erosion | soil genesis | soil mechanics |
| soil physics | soil pipe | soil profile |
| soil science | soil separate | soil series |
| soil shear strength | soil stabilizer | soil stack |
| soil stripes | soil structure | soil survey |
| soil thermograph | soil thermometer | soil water |
| soil-cement | sol | sol-air temperature |
| sol-gel glass | solaire | solano |
| solar absorption index | solar activity | solar air mass |
| solar antapex | solar apex | solar atmospheric tide |
| solar attachment | solar battery | solar bridge |
| solar burst | solar calendar | solar cell |
| solar collector | solar constant | solar corona |
| solar cycle | solar day | solar distillation |
| solar eclipse | solar energy | solar engine |
| solar evaporation | solar faculae | solar flare |
| solar flux unit | solar furnace | solar generator |
| solar heat exchanger drive | solar heat storage | solar heating |
| solar house | solar magnetic field | solar magnetograph |
| solar month | solar motion | solar neutrino |
| solar neutrino unit | solar orbit | solar parallax |
| solar phase angle | solar physics | solar plate |
| solar pond | solar power | solar probe |
| solar prominence | solar propulsion | solar pumping |
| solar radiation | solar radio noise | solar rocket |
| solar sail | solar satellite | solar sector |
| solar sensor | solar spectrum | solar still |
| solar system | solar telescope | solar tide |
| solar time | solar time apparent | solar time mean |
| solar tower | solar turboelectric drive | solar ultraviolet radiation |
| solar units | solar velocity | solar wind |
| solar-powered aircraft | solar-radiation observation | solar-terrestrial phenomena |
| solar-type star | solarization | solation |
| solder | solder brazing | solder track |
| soldering | soldering embrittlement | soldering flux |
| soldering gun | soldering iron | soldering pencil |
| soldier course | sole | sole |
| sole injection | sole mark | soleil compensator |
| solenoid | solenoid brake | solenoid valve |
| solenoidal field | solenoidal index | solenoidal vector |
| solepiece | solfatara | solid |
| solid angle | solid asphalt | solid car |
| solid conductor | solid contact rectifier | solid coupling |
| solid cutter | solid cylinder | solid die |
| solid drilling | solid electrolytic capacitor | solid explosive |
| solid geometry | solid grounding | solid helium |
| solid injection system | solid insulator | solid ionization chamber |
| solid laser | solid logic technology | solid moment of inertia |
| solid of revolution | solid propellant | solid rocket |
| solid schmidt telescope | solid shafting | solid shank tool |
| solid solution | solid state | solid stowing |
| solid system | solid tantalum capacitor | solid-component |
| solid-dielectric capacitor | solid-electrolyte battery | solid-electrolyte fuel cell |
| solid-electrolyte gas transducer | solid-liquid equilibrium | solid-phase welding |
| solid-piled | solid-propellant binder | solid-propellant rocket engine |
| solid-state amorphizing reaction | solid-state battery | solid-state circuit |
| solid-state circuit breaker | solid-state counter | solid-state device |
| solid-state laser | solid-state maser | solid-state physics |
| solid-state relay | solid-state switch | solid-state thyratron |
| solid-state welding | solid-web girder | solidification |
| solidification shrinkage | solidus | solidus |
| solidus curve | solifluction | solifluction lobe |
| solifluction mantle | solifluction sheet | solifluction stream |
| solion | soliquid | solitary wave |
| soliton | solodize | solomon r unit |
| solonchak soil | solonetz soil | solore |
| soloth soil | solstice | solstitial colure |
| solstitial points | solstitial tidal currents | solstitial tide |
| solubility | solubility coefficient | solubility curve |
| solubility product | solubility product constant | solubility test |
| soluble | soluble cutting oil | soluble oil |
| soluble starch | solute | solution |
| solution | solution dyeing | solution groove |
| solution heat treatment | solution mining | solution poison |
| solution polymerization | solution pool | solution potholes |
| solution pressure | solution process | solution vector |
| solution, ceramic | solution, complete | solution, particular |
| solvable by group | solvable by radicals | solvation |
| solvay process | solve | solved |
| solvent | solvent | solvent deasphalting |
| solvent dewaxing | solvent dyeing | solvent extraction |
| solvent front | solvent molding | solvent recovery |
| solvent welding | solvent-refined | solvent-refined oil |
| solvent-refining | solvolysis | solvus |
| soma | sombrero galaxy | sommelet process |
| sommerfeld formula | sonar | sonar array |
| sonar beacon | sonar boomer transducer | sonar capsule |
| sonar dome | sonar projector | sonar receiver |
| sonar resolver | sonar self-noise | sonar set |
| sonar target | sonar transducer | sonar transmission |
| sonar transmitter | sonar window | sondage |
| sonde | sondhauss tube | sone |
| sonic | sonic altimeter | sonic anemometer |
| sonic barrier | sonic bearing | sonic boom |
| sonic chemical analyzer | sonic cleaning | sonic depth finder |
| sonic drilling | sonic fix | sonic flaw detection |
| sonic line of position | sonic liquid-level meter | sonic navigation |
| sonic nucleation | sonic radiation | sonic sifter |
| sonic sounding | sonic spark chamber | sonic thermometer |
| sonics | sonnar lens | sonnenschein’s reagent |
| sonobuoy | sonobuoy reference system | sonocatalysis |
| sonochemistry | sonogram | sonograph |
| sonoluminescence | sonometer | sonora |
| sonoscan | soot | soot blower |
| soot luminosity | sophisticated | sophisticated robot |
| sorbate | sorbent | sorensen titration |
| soret coefficient | soret effect | sorotiite |
| sorption | sorption pumping | sortie |
| sorting | sorting coefficient | sorting index |
| sorting table | sothic cycle | sound |
| sound absorption | sound absorption coefficient | sound analyzer |
| sound attenuation | sound band pressure level | sound buoy |
| sound carrier | sound channel | sound detection |
| sound effects | sound energy | sound film |
| sound film strip | sound gate | sound head |
| sound image | sound impulse | sound insulation |
| sound intensity | sound irradiator | sound knot |
| sound lag | sound level | sound locator |
| sound masking | sound power | sound pressure level |
| sound production | sound ranging | sound reception |
| sound recording | sound reduction factor | sound reproduction |
| sound signal | sound spectrograph | sound spectrum |
| sound speed | sound stripe | sound track |
| sound transmission | sound transmission coefficient | sound volume velocity |
| sound-energy density | sound-energy flux | sound-level meter |
| sound-powered telephone | sound-ray diagram | sound-reinforcement system |
| sound-reproducing system | sound-wave photography | sounder |
| sounding | sounding balloon | sounding box |
| sounding line | sounding machine | sounding pipe |
| sounding pole | sounding rocket | sounding sand |
| sounding velocity | sounding wire | sour |
| sour crude | sour gas | source |
| source bed | source data | source error |
| source flow | source function | source impedance |
| source level | source material | source region |
| source rock | sourcing | south |
| south america | south atlantic current | south circumpolar star |
| south declination | south equatorial current | south foehn |
| south frigid zone | south geographical pole | south geomagnetic pole |
| south indian current | south pacific current | south point |
| south polar distance | south pole | south temperate zone |
| south tropical disturbance | southeast drift current | southeaster |
| souther | southerly burster | southing |
| southwester | sow | sow block |
| soxhlet extractor | space | space attenuation |
| space capsule | space charge | space cloth |
| space communication | space complex vector | space cone |
| space coordinates | space current | space curve |
| space detection and tracking system | space diversity reception | space environment |
| space factor | space fixed reference | space flight |
| space frame | space group | space guidance |
| space heating | space lattice | space mission |
| space modulation | space motion | space navigation |
| space permeability | space physics | space polar coordinates |
| space power system | space probe | space processing |
| space quantization | space reconnaissance | space reddening |
| space research | space satellite | space shuttle |
| space simulator | space station | space suit |
| space technology | space theory | space velocity |
| space walk | space wave | space-charge balanced flow |
| space-charge debunching | space-charge effect | space-charge error |
| space-charge grid | space-charge limitation | space-charge polarization |
| space-charge region | space-dyed yarn | space-flight trajectory |
| space-group extinction | space-time | space-time curve |
| spacecraft | spacecraft ground instrumentation | spacecraft launching |
| spacecraft propulsion | spacecraft tracking | spaced antenna |
| spaced loading | spacelike path | spacelike surface |
| spacelike vector | spaceport | spacer |
| spacer strip | spacing | spacing of joint |
| spacing pulse | spacistor | spackling |
| spade | spade bolt | spade drill |
| spade lug | spaghetti | spall |
| spall | spallation | spalling |
| spalling hammer | span | span |
| spandex | spandrel | spandrel beam |
| spandrel frame | spandrel wall | spanner |
| spanning set | spar | spar |
| spar buoy | spar deck | spar varnish |
| spare part | spare-parts list | sparging |
| spark | spark arrester | spark capacitor |
| spark chamber | spark coil | spark counter |
| spark discharge | spark distance | spark excitation |
| spark explosion method | spark gap | spark knock |
| spark lead | spark machining | spark photography |
| spark plate | spark plug | spark recorder |
| spark resistance | spark spectrum | spark suppressor |
| spark test | spark transmitter | spark voltage |
| spark-coil leak detector | spark-gap generator | spark-ignition engine |
| spark-tracing method | sparking | sparking potential |
| sparkle metal | sparkover test | sparkproof |
| sparrow’s criterion | sparry cement | sparse matrix |
| spasmodic turbidity current | spatial | spatial autocorrelation |
| spatial coherence | spatial dendrite | spatial distribution |
| spatial filter | spatial linkage | spatial quantization |
| spatiotemporal | spatter | spatter cone |
| spatter dash | spatter rampart | spatula |
| spear | spearman-brown formula | spearman’s rank correlation coefficient |
| spearmint oil | special cause | special flight |
| special functions | special jordon algebra | special nuclear material |
| special observation | special relativity | special theory of relativity |
| special unitary group of dimension | special unitary transformation | special weather report |
| special-purpose buoy | special-purpose item | special-purpose vehicle |
| species | species number | specific acoustical impedance |
| specific acoustical resistance | specific activity | specific catalysis |
| specific charge | specific conductance | specific conductivity |
| specific cryptosystem | specific energy | specific fuel consumption |
| specific gravity | specific heat | specific heat capacity |
| specific humidity | specific impulse | specific ionization |
| specific mass shift | specific mobility | specific power |
| specific reluctance | specific repetition rate | specific resistance |
| specific retention | specific rotation | specific speed |
| specific surface | specific viscosity | specific volume |
| specific weight | specific yield | specific-gravity bottle |
| specific-gravity hydrometer | specific-volume anomaly | specifications |
| specificity | specimen | speckle |
| spectacle frame | spectator ion | spectra pritchard photometer |
| spectral analysis | spectral bandwidth | spectral centroid |
| spectral characteristic | spectral classification | spectral color |
| spectral density | spectral dimension | spectral emissivity |
| spectral energy distribution | spectral extinction | spectral factorization |
| spectral function | spectral hygrometer | spectral irradiance |
| spectral line | spectral measure | spectral photography |
| spectral radiance | spectral radiance factor | spectral radius |
| spectral reflectance | spectral regions | spectral sensitivity |
| spectral series | spectral temperature | spectral theorems |
| spectral transmission | spectral type | spectral-shift reactor |
| spectrobolometer | spectrofluorometer | spectrogram |
| spectrograph | spectrography | spectroheliocinematograph |
| spectroheliogram | spectroheliograph | spectrohelioscope |
| spectrometer | spectrometry | spectrophone |
| spectrophotometer | spectrophotometry | spectropolarimeter |
| spectropyrheliometer | spectroscope | spectroscopic data |
| spectroscopic displacement law | spectroscopic parallax | spectroscopy |
| spectrum | spectrum | spectrum analysis |
| spectrum analyzer | spectrum level | spectrum locus |
| spectrum of rotation | spectrum of turbulence | spectrum signature |
| spectrum signature analysis | spectrum variable | specular reflection |
| specular reflection factor | specular reflection model | specular reflector |
| specular transmittance | speculum | speculum alloy |
| speech amplifier | speech bandwidth | speech clipper |
| speech clipping | speech compression | speech interference level |
| speech interpolation | speech recognition | speech synthesis |
| speed | speed circle | speed cone |
| speed control | speed density metering | speed error |
| speed factor | speed governor | speed indicator |
| speed lathe | speed line | speed of advance |
| speed of light | speed of response | speed of sound |
| speed of travel | speed over the ground | speed reducer |
| speed regulation | speed regulator | speed triangle |
| speed-length ratio | speedometer | speiss |
| spelean | speleology | speleothem |
| spelter | spelter solder | spending beach |
| spent fuel | spent iron sponge | spent liquor |
| spent lye | sperm oil | spermaceti |
| sperry process | sphenochasm | sphenoid |
| sphenoid | sphenolith | sphere |
| sphere gap | sphere of attraction | spheres of eudoxus |
| spherical aberration | spherical angle | spherical antenna |
| spherical astronomy | spherical bessel function | spherical candle power |
| spherical capacitor | spherical coordinate | spherical curve |
| spherical degree | spherical distance | spherical drop |
| spherical excess | spherical geometry | spherical harmonics |
| spherical lens | spherical mirror | spherical pendulum |
| spherical polygon | spherical powder | spherical pyramid |
| spherical radius | spherical sailing | spherical sector |
| spherical segment | spherical shell | spherical stress |
| spherical surface | spherical surface harmonic | spherical triangle |
| spherical trigonometry | spherical wave | spherical wedge |
| spherical-coordinate robot | spherical-earth attenuation | spherical-earth factor |
| spherically symmetrical | sphericity | spherochromatism |
| spherocylindrical lens | spheroid | spheroidal excess |
| spheroidal group | spheroidal recovery | spheroidal weathering |
| spheroidized carbides | spheroidized steel | spheroidizing |
| spherometer | spherotoric lens | spherulite |
| spica | spicule | spider |
| spider armature | spiderweb antenna | spiegeleisen |
| spike | spike microphone | spike oil |
| spile | spill | spilling |
| spillover | spillover positions | spillway |
| spillway apron | spillway channel | spillway gate |
| spin | spin axis | spin compensation [m] |
| spin echo technique | spin filter | spin glass |
| spin isomer | spin label | spin magnetic movement |
| spin magnetism | spin paramagnetism | spin quantum number |
| spin relaxation | spin rocket | spin stabilization |
| spin state | spin temperature | spin wave |
| spin welding | spin-decelerating moment [m] | spin-density wave |
| spin-dependent force | spin-flip | spin-flip scattering |
| spin-lattice interaction | spin-lattice relaxation | spin-orbit multiplet |
| spin-parity | spin-spin relaxation | spin-up |
| spindle | spinnbarkeit relaxation | spinner |
| spinneret | spinneret | spinning |
| spinning | spinning electron | spinning machine |
| spinning machine | spinning machine | spinning system |
| spinning top | spinning-band column | spinthariscope |
| spiral | spiral arms | spiral band |
| spiral bevel gear | spiral binding | spiral chute |
| spiral core | spiral cutterhead | spiral delay line |
| spiral flow tank | spiral flow test | spiral four cable |
| spiral galaxy | spiral gear | spiral mold cooling |
| spiral path | spiral pipe | spiral plate heat exchanger |
| spiral pressure gage | spiral ramp system | spiral ring structure |
| spiral scanning | spiral spring | spiral thermometer |
| spiral welded pipe | spiral wire column | spiral-jaw clutch |
| spiral-tube heat exchanger | spire | spirit |
| spirit compass | spirit duplicating | spirit level |
| spirit stain | spirit thermometer | spirit varnish |
| spiro atom | spirule | spit |
| spit | spitsbergen current | spitted fuse |
| spitting rock | splash block | splash erosion |
| splash lubrication | splashdown | splatter |
| splay | splayed arch | splice |
| splice plate | splicing tape | spline |
| spline broach | splined shaft | splint |
| splint coal | split barrel | split bearing |
| split cameras | split cavity | split die |
| split fix | split flap | split gear |
| split interstitial | split link | split nut |
| split pin | split pole converter | split pole generator |
| split shovel | split transducer | split vertical photography |
| split wheel | split-altitude profile | split-anode magnetron |
| split-barrel sampler | split-field microtran | split-lens interference |
| split-phase | split-phase motor | split-plot design |
| split-ring core lifter | split-ring mold | split-ring piston packing |
| splitter | splitting field | splitting function |
| splity rings | spodic horizon | spodosol |
| spoil | spoil bank | spoil dam |
| spoiler | spoke | spokeshave |
| sponge | sponge grease | sponge iron |
| sponge metal | sponge work | spongolite |
| spongy | sponsor | spontaneous |
| spontaneous combustion | spontaneous emission | spontaneous fission |
| spontaneous heating | spontaneous magnetization | spontaneous nucleation |
| spontaneous polarization | spontaneous process | spontaneous symmetry breaking |
| spontaneous-potential well logging | spoofing | spool |
| spool-type roller conveyor | spoon | sporadic e layer |
| sporadic meteor | sporadic reflections | sporer minimum |
| sporer’s law | spot | spot beam |
| spot carbon | spot drilling | spot elevation |
| spot facing | spot gluing | spot group |
| spot hover | spot jammer | spot noise figure |
| spot speed | spot speed | spot test |
| spot welding | spot wind | spot wobble |
| spot-size error | spotlight | spottiness |
| spotting | spotting hoist | spotty ore |
| spouting | spouting horn | sprag |
| sprag clutch | sprag road | spragger |
| spray | spray angle | spray board |
| spray chamber | spray dryer | spray gun |
| spray nozzle | spray oil | spray painting |
| spray point | spray pond | spray probe |
| spray quenching | spray torch | spray tower |
| spray transfer | spray-up | sprayed metal mold |
| sprayer | sprayer plate | spread |
| spread footing | spread reflection | spread spectrum transmission |
| spreader | spreader | spreader beam |
| spreader factor | spreading anomaly | spreading coefficient |
| sprengel pump | sprig | spring |
| spring | spring back | spring balance |
| spring bearings | spring bolt | spring box mold |
| spring brass | spring buffer | spring calipers |
| spring clip | spring collet | spring contact |
| spring cotter | spring coupling | spring crust |
| spring die | spring faucet | spring gravimeter |
| spring hammer | spring head | spring hinge |
| spring hook | spring modulus | spring pin |
| spring range | spring rise | spring scale |
| spring seepage | spring shackle | spring snow |
| spring steel | spring switch | spring temper |
| spring tidal current | spring tide | spring velocity |
| spring-load | sprinkle | sprinkle |
| sprinkler system | sprocket | sprocket chain |
| sprocket hole | sprocket wheel | spruce oil |
| spruce sulfite extract | sprue | sprue bushing |
| sprue gate | sprue puller | sprung axie |
| sprung weight | spud | spudded-in |
| spun glass | spun rayon | spun silk |
| spun yarn | spur gear | spurious correlation |
| spurious disk | spurious modulation | spurious radiation |
| spurious response | spurt tone | sputtering |
| squall | squall cloud | squall line |
| square | square built | square degree |
| square dome | square grade | square groove weld |
| square key | square law | square matrix |
| square mesh | square planar | square planar molecule |
| square pyramidal | square root | square search |
| square set | square thread | square wave |
| square wheel | square-edged orifice | square-head bolt |
| square-jaw clutch | square-law detector | square-root law |
| square-root transformation | square-serif type | square-set block caving |
| square-set stopes | square-wave amplifier | square-wave generator |
| square-wave response | squareness ratio | squaring circuit |
| squaring shear | squatting | squealing |
| squeegee | squeezable waveguide | squeeze |
| squeeze roll | squeeze section | squeeze time |
| squeezed state | squegging | squelch |
| squib | squint | squirrel-cage motor |
| squirrel-cage rotor | squirrel-cage winding | squirt can |
| squirt gun | squitter | stab |
| stabilator | stability | stability augmentation system |
| stability chart | stability constant | stability criterion |
| stability exchange principle | stability factor | stability index |
| stability test | stabilivolt | stabilization |
| stabilize | stabilized flight | stabilized winding |
| stabilizer | stabilizer bar | stabilizer voltage |
| stabilizing | stabilizing treatment | stabistor |
| stable | stable element | stable equilibrium |
| stable isobar | stable isotope | stable layer |
| stable nucleus | stable orbit | stable platform |
| stable state | stable vertical | stable-base film |
| stack | stack | stack effect |
| stack gas | stack vent | stack welding |
| stacked antenna | stacked array | stacked loops |
| stacked-beam radar | stacked-dipole antenna | stacking |
| stacking fault | stactometer | stadia |
| stadia hairs | stadia rod | stadia tables |
| stadimeter | staebler-wronski effect | staff bead |
| staff gage | stage | stage gain |
| staged crew | stagger | stagger-tooth cutter |
| stagger-tuned filter | staggered | staggered blast holes |
| staggered tuning | staggering | staggering advantage |
| stagnant glacier | stagnant water | stagnation |
| stagnation point | stagnum | stain |
| stained glass | stainless alloy | stainless iron |
| stainless steel | stainless steel diaphragm | stainless-clad steel |
| stair | stair-case | staircase signal |
| stairway | stairwell | stake |
| staking | staking out | stalagmite |
| stalagmometer | stall | stall flutter |
| stall torque | stall warning indicator | stalling mach number |
| stalo | stamp battery | stamped pole |
| stamper | stamping | stamping |
| stamping mill | stamukha | stanchion |
| stand | stand on | stand-alone fuel |
| standard | standard | standard antenna |
| standard artillery atmosphere | standard artillery zone | standard atmosphere |
| standard ballistic conditions | standard broadcast channel | standard broadcasting |
| standard calomel electrode | standard capacitor | standard cell |
| standard clock | standard compass | standard concentration |
| standard conditions | standard coordinates | standard deviate |
| standard deviation | standard distribution | standard electrode |
| standard electrode potential | standard error | standard error of the estimate |
| standard error of the forecast | standard fit | standard flask |
| standard form | standard free-energy increase | standard gage |
| standard gage | standard gold | standard gravity |
| standard heat of formation | standard hole | standard illuminants |
| standard inductor | standard leak | standard lens |
| standard load | standard meridian | standard model |
| standard noise temperature | standard noon | standard parallel |
| standard pitch | standard plane | standard potential |
| standard preemphasis | standard pressure | standard project flood |
| standard propagation | standard rate turn | standard reference material |
| standard refraction | standard resistor | standard sand |
| standard shaft | standard solenoid | standard solution |
| standard star | standard state | standard target |
| standard terminal arrival route | standard test-tone power | standard time |
| standard trajectory | standard unit | standard volume |
| standard waveguide | standard wiggler | standard wire rope |
| standard-frequency signal | standardised | standardization |
| standardized product | standardized test statistics | standardized units |
| standby battery | standby power source | standing cloud |
| standing ground | standing operating procedure | standing rigging |
| standing wave | standing-wave detector | standing-wave loss factor |
| standing-wave method | standing-wave producer | standing-wave ratio |
| standoff jammer | standpipe | standpipe system |
| standstill | standstill feature | stanhope lens |
| stannum | stanton diagram | stanton number |
| staple | stapler | stapler |
| star | star | star |
| star | star atlas | star catalog |
| star cluster | star color | star connection |
| star count | star day | star density |
| star drift | star drill | star finder |
| star grain | star group | star lamp |
| star map | star motions | star network |
| star place | star streaming | star test |
| star, evening | star, morning | star-connected circuit |
| star-delta switching starter | star-shaped set | starboard |
| starburst galaxy | stark effect | stark-lunelund effect |
| starlike region | starspot | start dialing signal |
| start element | start-stop control | start-stop system |
| start-to-leak pressure | starter | starting barrel |
| starting box | starting methods | starting mix |
| starting period | starting reactor | starting resistance |
| starting sheet | starting switch | starting taper |
| starting torque | starting unit | starting winding |
| starved basin | starved joint | stat |
| stat | stat ampere | stat coulomb |
| stat farad | stat henry | state |
| state equations | state feedback | state of matter |
| state of strain | state of stress | state of the sea |
| state of the sky | state space | state transition equation |
| state transition matrix | state variable | statement |
| static | static | static bed |
| static characteristic | static charge | static condenser |
| static discharger | static electricity | static eliminator |
| static equilibrium | static error | static firing |
| static fluid column | static force | static friction |
| static gel buildup | static grizzly | static head |
| static induction transistor | static inverter | static level |
| static line | static load | static machine |
| static metamorphism | static moment | static oceanography |
| static phase converter | static pressure | static reaction |
| static reactive compensator | static regulator | static sensitivity |
| static stability | static stress | static switching |
| static test | static torsion | static trees |
| static tube | static universe | static-pressure tube |
| statically admissible loads | statics | station |
| station authentication | station buoy | station continuity chart |
| station elevation | station model | station pointer |
| station pressure | station roof | station time |
| stationary | stationary cone classifier | stationary distribution |
| stationary engine | stationary field | stationary limit |
| stationary noise | stationary orbit | stationary phase |
| stationary point | stationary position | stationary satellite |
| stationary state | stationary wave | statistic |
| statistical analysis | statistical control | statistical forecast |
| statistical hypothesis | statistical independence | statistical inference |
| statistical map | statistical mean | statistical mechanics |
| statistical multiplexer | statistical parallax | statistical thermodynamics |
| statistical weight | statistics | statmho |
| statohm | stator | stator armature |
| stator core | stator frame | stator over heating protection |
| stator plate | statoscope | statuary bronze |
| stave | stay | stay |
| stay bolt | stay time | stay tube |
| stayed-cable bridge | steadiness | steadite |
| steady bearing | steady combustion | steady flow |
| steady pin | steady rest | steady state |
| steady-state conditions | steady-state conduction | steady-state current |
| steady-state distribution | steady-state error | steady-state flow |
| steady-state reactor | steady-state theory | steady-state vibration |
| steady-state wave motion | steam | steam accumulator |
| steam atomizing oil burner | steam attemperation | steam bending |
| steam boat | steam boiler | steam bronze |
| steam calorimeter | steam capstan | steam chest |
| steam cock | steam condenser | steam cracking |
| steam cure | steam distillation | steam drive |
| steam driven | steam drop forges | steam dryer |
| steam emulsion test | steam engine | steam engine indicator |
| steam fog | steam gage | steam gas |
| steam hammer | steam heating | steam jacket |
| steam jet | steam launch | steam line |
| steam locomotive | steam loop | steam molding |
| steam nozzle | steam pipe | steam point |
| steam power | steam pump | steam refining |
| steam reheater | steam roller | steam separator |
| steam shovel | steam still | steam stop valve |
| steam superheater | steam tracing | steam trap |
| steam turbine | steam valve | steam washer |
| steam whistle | steam-electric generator | steam-heated evaporator |
| steam-jet cycle | steam-jet ejector | steam-refined asphalt |
| steam-refined stock | steam-tube dryer | steaminess |
| steamship | steamy | steatization |
| steckel rolling | steel | steel ball |
| steel belt | steel bronze | steel capsule |
| steel converter | steel die casting | steel emery |
| steel engraving | steel foil | steel ingot |
| steel jack | steel joist | steel sets |
| steel towers | steel trap | steel tunnel support |
| steel wool | steel-cable conveyor belt | steel-casting |
| steel-clad rope | steelflex coupling | steelmaking |
| steelyard | steen | steenrod algebra |
| steenrod squares | steep chute | steep slope |
| steepest descent method | steeple | steerable antenna |
| steerage | steerageway | steering |
| steering arm | steering brake | steering compass |
| steering engine | steering gear | steering level |
| steering wheel | stefan number | stefan-boltzmann constant |
| stefan-boltzmann law | stefan’s formula | stefan’s law of radiation |
| steiner triple system | steinheil lens | steinkern |
| steinmetz coefficient | steinmetz’s law | stellar |
| stellar association | stellar atmosphere | stellar energy |
| stellar evolution | stellar flare | stellar guidance |
| stellar inertial guidance | stellar interferometer | stellar light |
| stellar lightning | stellar luminosity | stellar magnetic field |
| stellar mass | stellar model | stellar parallax |
| stellar photometry | stellar population | stellar pulsation |
| stellar rotation | stellar spectroscopy | stellar spectrum |
| stellar structure | stellar system | stellar temperature |
| stellar wind | stellarator | stellite |
| stem | stem bag | stem correction |
| stem-winding | stemming rod | stencil |
| stenometer | step | step aeration |
| step angle | step attenuator | step bearing |
| step block | step brazing | step change |
| step drill | step fault | step function |
| step gage | step gating | step pulley |
| step response | step soldering | step test |
| step trench | step voltage regulator | step wedge |
| step wise | step-and-repeat camera | step-by-step switch |
| step-by-step system | step-climb profile | step-down transformer |
| step-function generator | step-out time | step-recovery diode |
| step-up transformer | stephan’s quintet | stepped |
| stepped cone pulley | stepped footing | stepped foundation |
| stepped gear wheel | stepped leader | stepped screw |
| stepped-wave static inverter | stepper motor | stepping relay |
| steptoe | stepwise reaction | steradian |
| stere | stereo | stereo amplifier |
| stereo autograph | stereo broadcasting | stereo comparator |
| stereo effect | stereo photograph | stereo pickup |
| stereo preamplifier | stereo record | stereo recorded tape |
| stereo sound system | stereo subcarrier | stereo tape recorder |
| stereo tuner | stereobate | stereochemistry |
| stereocomparagraph | stereofluoroscopy | stereognomogram |
| stereogram | stereographic chart | stereographic coverage |
| stereographic projection | stereoisomers | stereomicrography |
| stereomicrometer | stereophonic | stereophonics |
| stereoplanigraph | stereoscope | stereoscopic camera |
| stereoscopic microscope | stereoscopic model | stereoscopic pair |
| stereoscopic photography | stereoscopic power | stereoscopic rangefinder |
| stereoscopic system | stereospecific polymer | stereospecific synthesis |
| stereospecificity | stereotype | sterhydraulic |
| steric effect | steric hindrance | steric repulsion |
| steric strain | sterilizer | sterling silver |
| stern | stern attack | stern end bulb |
| stern frame | stern layer | stern post |
| stern tube | stern wheel | stern-gerlach effect |
| stern-zartman experiment | sternway | sterrometal |
| stetefeldt furnace | stewartite | stibium |
| stick | stick gage | stick, shellac |
| stick-slip friction | sticking coefficient | stiction |
| stiff hinge | stiff ship | stiffener |
| stiffening derrick | stiffening truss | stiffleg derrick |
| stiffness | stiffness coefficient | stiffness constant |
| stiffness matrix | stigmatic | stigmatic concave grating |
| stilb | stile | stiletto |
| still | still water | still-water level |
| stilling basin | stillingia oil | stillness |
| stimson anchor | stimulated | stimulated emission |
| stimulated scattering | stimulated-emission device | stimulation |
| stimulus | stink ball | stink bomb |
| stink pot | stink stone | stink trap |
| stinkdamp | stippling | stir |
| stir-in resin | stirling cycle | stirling engine |
| stirling numbers | stirling’s formula | stirling’s series |
| stirred-flow reactor | stirrer | stirring |
| stirring effect | stirring rate | stirrup |
| stitch bonding | stitch rivet | stitch welding |
| stitching | stobbe reaction | stochastic |
| stochastic calculus | stochastic chain rule | stochastic control theory |
| stochastic differential | stochastic integral | stochastic matrix |
| stochastic process | stock chisel | stock rail |
| stock-dye | stockage objective | stocking cutter |
| stockpile | stocks | stockwork |
| stoddard solvent | stodola method | stoichiometry |
| stoke | stoker | stokes drift |
| stokes flow | stokes frequencies | stokes integral theorem |
| stokes line | stokes number | stokes parameters |
| stokes phenomenon | stokes shift | stokes stream function |
| stokes’ law | stokes’lens | stoking |
| stone | stone apron | stone boat |
| stone butter | stone coal | stone cutter |
| stone cutting | stone dust | stone gall |
| stone gobber | stone hammer | stone masonry |
| stone pit | stone ring | stone saw |
| stone weiorstrass theorem | stone-dust barrier | stoner |
| stoneware | stonework | stoney gate |
| stone’s representation theorem | stone’s theorem | stony meteorite |
| stony-iron meteorite | stooping | stop |
| stop bath | stop bead | stop clock |
| stop cock | stop down | stop element |
| stop nut | stop signal | stop valve |
| stop wall | stop watch | stope |
| stope assay plan | stope board | stope fillings |
| stope hoist | stope pillar | stoping drill |
| stoping ground | stoplight | stoplog |
| stopped-flow method | stopper | stopping |
| stopping off | stopping out | stopping place |
| stopping potential | stopping power | stopping range |
| stopping rule | stopwater | stop (mech) |
| storable propellant | storage | storage battery |
| storage battery locomotive | storage cost | storage device |
| storage effect | storage equation | storage oscilloscope |
| storage rings | storage tube | storage work |
| storage-retrieval machine | store | store and forward |
| store transmission bridge | stored energy | stored-energy welding |
| stored-program control | storing | storm |
| storm beach | storm center | storm detection |
| storm drain | storm ice foot | storm microseism |
| storm model | storm proof | storm run off |
| storm sewage | storm surge | storm tide |
| storm track | storm transposition | storm warning |
| storm wind | storm window | storm-warning signal |
| storm-warning tower | stormless | stormscope |
| storrow whirling hygrometer | story | story rod |
| storyboard | stove | stove bolt |
| stovepipe | stovewood | stowage diagram |
| stowage factor | stowage plan | straddle milling |
| straddle truck | straggling | straight beam |
| straight bevel gear | straight dynamite | straight filing |
| straight joint | straight line | straight line capacitor |
| straight polarity | straight strap clamp | straight turning |
| straight vertical antenna | straight wheel | straight-flow turbine |
| straight-line mechanism | straight-line motion | straight-run |
| straight-run distillation | straight-run pitch | straight-tube boiler |
| straightedge | straightening vanes | straightforward circuit |
| straightforward trunking | straightway pump | strain |
| strain aging | strain bursts | strain ellipsoid |
| strain energy | strain fields | strain foil |
| strain gage | strain hardening | strain insulator |
| strain rate | strain relief method | strain restoration method |
| strain rosette | strain seismograph | strain seismometer |
| strain tensor | strain-gage accelerometer | strain-gage bridge |
| strain-slip | strained-layer superlattice | strainer |
| straining beam | strainless ring | strait |
| strake | strake | strand |
| strand | strand burner | stranded ice |
| stranded ice foot | stranded wire | strandline |
| strange attractor | strange particle | strange quark |
| strangeness conservation | strangeness number | stranger |
| strap | strap bolt | strap clamp |
| strap hammer | strap hinge | strapped magnetron |
| strapping | strasbourg turpentine | strata |
| strategic airlift | strategic map | strategic transport aircraft |
| strategics research | strategy | strath |
| strath terrace | stratification | stratification index |
| stratification plane | stratified charge engine | stratified drift |
| stratified film | stratified flow | stratified fluid |
| stratified ocean | stratified sampling | stratiform |
| stratiformis | stratigrapher | stratigraphic map |
| stratigraphic oil fields | stratigraphic throw | stratigraphic unit |
| stratigraphy | stratocumulus | stratopause |
| stratoscope | stratosphere | stratosphere |
| stratosphere radiation | stratospheric coupling | stratospheric steering |
| stratotype | stratovolcano | stratton pseudoscope |
| stratum | stratus | straw oil |
| straw plait | straw stem | straw yard |
| strawboard | stray | stray capacitance |
| stray current | stray current corrosion | stray emission |
| stray field | stray line | stray loss |
| stray sand | strays | streak |
| streak camera | streak lightning | streak line |
| streak lined motion | stream anchor | stream capacity |
| stream channel | stream current | stream erosion |
| stream feeder | stream flow | stream frequency |
| stream function | stream gage | stream gradient |
| stream gradient ratio | stream load | stream order |
| stream profile | stream segment | stream sink |
| stream terrace | stream tin | stream transport |
| stream tube | stream-channel form ratio | stream-length ratio |
| streamer | streamer chamber | streaming current |
| streaming potential | streamline | streamline flow |
| streamlining | street | street elbow |
| stremmatograph | strength | strength of current |
| strength of ebb | strength of flood | strength of metal |
| strength-of-ebb interval | strength-of-flood interval | stress |
| stress amplitude | stress analysis | stress concentration |
| stress concentration factor | stress corrosion | stress crack |
| stress difference | stress distribution | stress ellipsoid |
| stress factor | stress function | stress intensity |
| stress raiser | stress range | stress ratio |
| stress relaxation | stress relief cracking | stress relieving |
| stress sensor | stress tensor | stress-corrosion cracking |
| stress-optics law | stressed skin construction | stretch |
| stretch former | stretch forming | stretched pebbles |
| stretcher | stretcher | stretcher bar |
| stretcher bond | stretcher leveling | stretcher stone |
| stretching | striation | striation |
| striation instrument | striation technique | striding compass |
| strike | strike fault | strike note |
| strike photography | strike plate | strike plating |
| strike slip | strike-off board | strike-slip fault |
| striking hammer | striking potential | string |
| string bark | string bead | string course |
| string electrometer | string galvanometer | string milling fixture |
| stringer | stringer lode | stringer plate |
| strip | strip lights | strip mining |
| strip pit | strip printer | strip welding |
| strip-borer drill | strip-chart recorder | stripe |
| striped ground | striper plate | stripped |
| stripped atom | stripped plain | stripped structural surface |
| stripper | stripper | stripper plate |
| stripper punch | stripping | stripping |
| stripping a shaft | stripping agent | stripping analysis |
| stripping area | stripping ratio | stripping shovel |
| strobe | strobe circuit | strobe marker |
| strobe pulse | stroboscope | stroboscopic direction finder |
| stroboscopic disk | stroboscopic photography | stroboscopic tachometer |
| stroke | stroke density | stroke length |
| stroke speed | stroke wheel | stroke-bore ratio |
| stromatolite | stromatolith | strombolian |
| stromgren radius | stromgren sphere | strong acid |
| strong algorithm | strong base | strong breeze |
| strong electrolyte | strong fix | strong gale |
| strong interaction | strong maximum | strongly continuous semi group |
| strongly topology | strongly typed language | strontium |
| strouhal number | strowger system | struck capacity |
| struck joint | struck string instrument | structural adhesive |
| structural analysis | structural bench | structural bulkhead |
| structural clay tile | structural concrete | structural connection |
| structural contour map | structural deflections | structural drawings |
| structural drill | structural drilling | structural engineering |
| structural foam | structural form | structural formula |
| structural frame | structural geology | structural glass |
| structural high | structural low | structural riveting |
| structural shape | structural stability | structural steel |
| structural terrace | structural tile | structural trap |
| structural valley | structure | structure amplitude |
| structure contour | structure factor | structure number |
| structure resonance | structure sect in | structure type |
| structure-contour map | structure-sensitive property | structured light |
| strut | stub | stub angle |
| stub axle | stub cable | stub entry |
| stub matching | stub mortise | stub switch |
| stub teeth | stub tenon | stub tube |
| stub tuner | stub-supported coaxial | stub-supported line |
| stubs gage | stucco | stuck mould |
| stud | stud bolt | stud driver |
| stud link chain | stud partition | stud wall |
| stud welding | student’s distribution | student’s t-statistic |
| student’s t-test | studio | stuffed mineral |
| stuffing | stuffing box | stuffing nut |
| stull | stull piece | stull stoping |
| stump | sturges rule | stutter |
| stuve chart | stylet | stylolite |
| stylus | styrene plastic | styrene-rubber plastic |
| styroflex cable | sub | sub aerial |
| sub algebra | sub alkaline | sub assembly |
| sub atmospheric heating system | sub base | sub bituminous coal |
| sub bottom depth recorder | sub bottom reflection | sub boundary structure |
| sub capillary interstice | sub centre | sub cluster |
| sub clutter visibility | sub group | sub space |
| sub space invariant | sub synchronous | sub tangent |
| sub vertical | subangular | subantartic intermediate water |
| subaqueous | subaqueous dune | subaqueous mining |
| subaqueous pressure | subarctic | subarid |
| subarkose | subartesian well | subatomic particle |
| subcommutation | subcomponent | subcompound |
| subconchoridal | subcontinent | subcontract |
| subcontractor | subcritical | subcritical flow |
| subcritical mass | subcritical reactor | subcrop |
| subcycle generator | subdivided capacitor | subdrainage |
| subdrilling | subduction | subdwarf star |
| subfeldpathic | subfloor | subframe |
| subgelisol | subgeostropic wind | subgiant star |
| subglacial | subgrade | subgradient wind |
| subgrain | subharmonic | subhumid climate |
| subjacent | subjacent igneous body | subject copy |
| sublacustrine | sublacustrine channel | sublayer |
| sublevel | sublevel caving | sublevel drive |
| sublevel stoping | sublimation | sublimation cooling |
| sublimation curve | sublimation energy | sublimation nucleus |
| sublimation point | sublimation pressure | sublimation vein |
| sublimatography | sublimator | sublime |
| subliming rocket propellant | sublittoral zone | subluminous star |
| sublunar point | submain | submarine |
| submarine base | submarine bell | submarine blast |
| submarine cable | submarine canyon | submarine fan |
| submarine gate | submarine isthmus | submarine mine |
| submarine navigation | submarine oscillator | submarine peninsula |
| submarine pipeline | submarine pit | submarine relief |
| submarine sanctuary | submarine sentry | submarine sound signal |
| submarine spring | submarine station | submarine striking forces |
| submarine topography | submarine wave recorder | submarine weathering |
| submerged | submerged breakwater | submerged coastal plain |
| submerged discharge | submerged lands | submerged screw log |
| submerged weir | submerged-arc furnace | submerged-arc welding |
| submerged-combustion evaporator | submerged-combustion heater | submergence |
| submersible bridge | submersible pump | submetallic |
| submillimeter wave | subminiature tube | submodule |
| submultiple | submultiple resonance | subnormal |
| subnormal operator | suboptimization | subpolar glacier |
| subpolar high | subpopulation | subpulse |
| subrange | subrefraction | subring |
| subroutine | subsample | subsampling |
| subsatellite | subscale | subscriber line |
| subscriber station | subscript | subscription television |
| subsequent | subsequent drainage | subsequent stream |
| subsequent valley | subset | subshell |
| subsidence | subsidence break | subsidence inversion |
| subsidiary conduit | subsidiary transport | subsieve analysis |
| subsieve fraction | subsoil | subsoil water |
| subsolar point | subsonic | subsonic flight |
| subsonic flow | subsonic inlet | subsonic nozzle |
| subsonic speed | substance | substandard |
| substandard propagation | substation | substellar point |
| substituent | substituent solid solution | substitute |
| substitution | substitution alphabet | substitution cipher |
| substitution method | substitution reaction | substitution solid solution |
| substitution weighing | substitutional atom | substitutional impurity |
| substitutive nomenclature | substraction | substrate |
| substratosphere | substratum | substructure |
| subsurface current | subsurface exploration | subsurface flow |
| subsurface geology | subsurface irrigation | subsurface waste disposal |
| subsurface wave | subsystem | subtend |
| subtense bar | subtense technique | subtense theodolite |
| subterranean ice | subterranean stream | subtractive primaries |
| subtractive process | subtractor | subtropic |
| subtropical convergence | subtropical cyclone | subtropical high |
| subvert | subvoice-grade channel | subway |
| subway-type transformer | successive | successive constraint |
| successive differentiation | sucksmith ring balance | suction |
| suction anemometer | suction boundary layer control | suction cup |
| suction dredge | suction lift | suction line |
| suction pipe | suction plate | suction pump |
| suction stroke | suction-cutter dredger | sudden commencement |
| suede | suede cloth | suestada |
| suevite | suffix | sugar berg |
| sugarcane wax | sugarloaf sea | suhl amplifier |
| suhl effect | sukhovel | sulfate |
| sulfate paper | sulfate pulping | sulfation |
| sulfidation | sulfide dye | sulfite |
| sulfite paper | sulfite pulp | sulfite waste liquor |
| sulfofication | sulfonated oil | sulfur |
| sulfur ball | sulfur cement | sulfur dome |
| sulfur number | sulfur spring | sulfur test |
| sulfuration | sulfuric acid alkylation | sulfurized oil |
| sullage | sullage | sullage |
| sullivan angle compressor | sullivan reaction | sulphur |
| sulphuric acid | sulphurized oil | sultriness |
| sulzer two-cycle engine | sum | sum rule |
| sumbul oil | sumi reed | summability method |
| summable function | summation | summation by parts |
| summation convention | summation of series | summation principle |
| summation tone | summer | summer solstice |
| summing amplifier | summing network | summit |
| sumner line | sumner method | sump |
| sump fuse | sump pump | sun |
| sun chromosphere | sun compass | sun cross |
| sun crust | sun cycle | sun dial |
| sun drawing water | sun follower | sun line |
| sun pillar | sun strobe | sun-and-planet motion |
| sun-grazing comet | sun-pumped laser | sun-synchronous orbit |
| sunflower oil | sunk | sunk draft |
| sunk face | sunk key | sunk panel |
| sunken rock | sunlamp | sunlit aurora |
| sunrise | sunset | sunshine |
| sunshine integrator | sunshine recorder | sunspot |
| sunspot cycle | sunspot maximum | sun’s way |
| super capillary interstice | super excited condenser | super harmonic function |
| super heater | super heavy boson | super heterodyne |
| super heterodyne receiver | super high frequency | super high speed steel |
| super insulation | super ionic conduction | super passage |
| super set | super-metal-rich star | super-schmidt telescope |
| superacid | superadiabatic lapse rate | superaerodynamics |
| superalloy | supercalendered finish | supercalendering |
| supercavitating propeller | supercentrifuge | supercharge method |
| supercharger | supercharging | superchip chlorination |
| supercluster | supercobalt drill | superconducting accelerator |
| superconducting alloy | superconducting circuit | superconducting cyclotron |
| superconducting magnet | superconducting magnetic energy storage | superconducting memory |
| superconducting metal | superconducting thin film | superconductivity |
| superconductor | supercontinent | supercooled cloud |
| supercooling | supercritical | supercritical field |
| supercritical flow | supercritical fluid | supercritical mass |
| supercritical reactor | supercritical wing | supercritical-fluid extraction |
| supercurrent | superdeformed nuclear state | superdense state |
| superelastic collision | superelevation | superexchange |
| superfiche | superficial hardness | superficial rockwell hardness test |
| superfines | superfinishing | superfluid |
| superfluidity | superfluorescence | supergalaxy |
| supergiant star | superglacial | supergradient wind |
| supergravity | supergroup | superheat |
| superheated steam | superheated vapor | superheating |
| superhighway | superimpose | superimposed |
| superimposed back pressure | superimposed drainage | superimposed fan |
| superimposed glacier | superimposed stream | superimposed valley |
| superincumbent | superior air | superior conjunction |
| superior mirage | superior planet | superior tide |
| superlatent liquid | superlattice | superlayer |
| supermassive star | supermode laser | supermolecule |
| supermultiplet | supernatant liquor | supernova |
| supernova remnant | supernumerary rainbow | superphosphate |
| superplasticity | superposed circuit | superposition |
| superposition | superposition integral | superradiant scattering |
| superregeneration | superresolution | supersaturated |
| supersaturated flow | supersaturation | superscript |
| supersensitive relay | supersonic | supersonic aerodynamics |
| supersonic aircraft | supersonic airfoil | supersonic amplifier |
| supersonic compressor | supersonic diffuser | supersonic flow |
| supersonic frequency | supersonic nozzle | supersonic plane |
| supersonic sounding | supersonic transport | superspace |
| superstandard propagation | superstructure | supersymmetry |
| supersystem | supertanker | supertension cable |
| superthermal particles | superthermal source | supertransuranics |
| superturbulent flow | supervisory control | supervisory controlled manipulation |
| supervisory signal | supervisory system | supervoltage |
| supplement | supplementary | supplementary angle |
| supplementary condition | supplementary group | supplementary relay |
| supplementary units | supplied air respirator | supply |
| supply | supply voltage | supply voltage wave form |
| support base | support, roller | support-coated capillary column |
| supported end | suppressed | suppressed carrier |
| suppressed-carrier modulation | suppressed-carrier transmission | suppressed-zero instrument |
| suppression | suppression shield | suppressor |
| suppressor grid | suppressor pulse | supralateral tangent arcs |
| suprapermafrost layer | supratidal sediment | supratidal zone |
| surcharge | surcharged wall | surd |
| surf | surf beat | surf characteristics |
| surf ripple | surf zone | surface |
| surface acoustic wave | surface air leakage | surface alloying |
| surface analyzer | surface area | surface barrier |
| surface boundary layer | surface broaching | surface carburetor |
| surface chart | surface chemistry | surface color |
| surface combustion | surface condenser | surface corrosion |
| surface creep | surface current | surface density |
| surface detention | surface drag | surface drainage |
| surface drilling | surface duct | surface energy |
| surface film | surface finish | surface force |
| surface friction | surface gage | surface geology |
| surface grinder | surface hardening | surface hardening process |
| surface heat treatment | surface hoar | surface ignition |
| surface imperfection | surface inversion | surface leakage |
| surface machining | surface magnetic wave | surface mining |
| surface navigation | surface noise | surface of centre |
| surface of discontinuity | surface of joachimsthal | surface of liouville |
| surface of monge | surface of negative curvature | surface of positive curvature |
| surface of revolution | surface of translation | surface of voss |
| surface of zero curvature | surface orientation | surface passivation |
| surface patch | surface phase | surface physics |
| surface plasmon | surface plate | surface pressure |
| surface reaction | surface recombination rate | surface recombination velocity |
| surface resistivity | surface right | surface rolling |
| surface roughness | surface runoff | surface slope |
| surface soil | surface state | surface storage |
| surface temperature | surface tension | surface tension number |
| surface thermometer | surface velocity | surface vibrator |
| surface visibility | surface volume ratio | surface water |
| surface waterproofing | surface wave | surface weather observation |
| surface wind | surface-acoustic-wave device | surface-acoustic-wave filter |
| surface-active agent | surface-barrier diode | surface-barrier transistor |
| surface-charge transistor | surface-coated mirror | surface-effect ship |
| surface-mount technology | surface-set bit | surface-wave transmission line |
| surfacer | surfacing | surficial deposit |
| surficial geology | surge | surge absorber |
| surge admittance | surge arrester | surge current |
| surge diverter | surge generator | surge impedance |
| surge line | surge of current | surge protector |
| surge stress | surge suppressor | surge tank |
| surge voltage | surgin | surging glacier |
| suroet | surplus | surplus variable |
| surplus weir | surprint | surveillance |
| surveillance approach | surveillance radar | surveillance satellite |
| survey | survey foot | survey instrument |
| surveying altimeter | surveyor’s compass | surveyor’s cross |
| surveyor’s level | surveyor’s measure | survivable route |
| survival curve | surwell clinograph | susceptance |
| susceptance standard | susceptibility | susceptometer |
| susceptor | suspended | suspended acoustical ceiling |
| suspended ceiling | suspended coil galvanometer | suspended formwork |
| suspended load | suspended span | suspended transformation |
| suspended tray conveyor | suspended tubing | suspension |
| suspension | suspension bridge | suspension cable |
| suspension fiber | suspension insulator | suspension roof |
| suspension system | suspension type insulator | sustained oscillation |
| sustained run off | sustainer rocket engine | sutro weir |
| sveberg | sverdrup | swab |
| swage bolt | swaging | swale |
| swallow float | swallow hole | swamp |
| swamp buggy | swamper | swamping resistor |
| swarf | swarf cut | swash |
| swash plate | sway | sway brace |
| sway frame | sweat | sweat soldering |
| sweated wax | sweating | sweating out |
| sweep | sweep | sweep amplifier |
| sweep circuit | sweep frequency | sweep generator |
| sweep jamming | sweep pattern | sweep rate |
| sweep test | sweep voltage | sweep-frequency reflectometer |
| sweep-through jammer | sweepback | sweeping |
| sweet crudes | sweet gas | sweet orange oil |
| sweetening | swell | swell diameter |
| swell direction | swell forecast | swell-and-swale topography |
| swelled ground | swelling | swelling clay |
| swept volume | sweptback wing | swing |
| swing belt | swing bridge | swing clamp |
| swing door | swing joint | swing pipe |
| swing-frame grinder | swing-hammer crusher | swing-wing aircraft |
| swinging | swinging buoy | swinging choke |
| swinging compass | swinging load | swinging ship |
| swirl bearing | swirl error | switch |
| switch | switch angle | switch function |
| switch gear | switch hook | switch jack |
| switch off | switch on | switch plate |
| switch pretravel | switch room | switch train |
| switch-over travel | switchback | switchblade knife |
| switchboard | switched capacitor | switched circuit |
| switched line | switched network | switching |
| switching center | switching circuit | switching control |
| switching device | switching diode | switching gate |
| switching node | switching reactor | switching substation |
| switching surface | switching system | switching theory |
| switching time | switching transistor | switching trunk |
| switching tube | switching-through relay | switchman |
| swivel | swivel block | swivel coupling |
| swivel head | swivel hook | swivel joint |
| swivel spindle | syblet | syllabic compandor |
| sylvester | symballophone | symbol |
| symbolic logic | symmetric | symmetric difference |
| symmetric element | symmetric expression | symmetric fission |
| symmetric function | symmetric game | symmetric group |
| symmetric load | symmetric matrix | symmetric plane |
| symmetric polynomial | symmetric ripple mark | symmetric tensor |
| symmetric top molecule | symmetrical | symmetrical achromat lens |
| symmetrical avalanche rectifier | symmetrical band-pas filter | symmetrical band-reject filter |
| symmetrical clipper | symmetrical components | symmetrical deflection |
| symmetrical distribution | symmetrical fold | symmetrical H attenuator |
| symmetrical inductive diaphragm | symmetrical lens | symmetrical O attenuator |
| symmetrical pi attenuator | symmetrical structure | symmetrical T attenuator |
| symmetrical transducer | symmetry | symmetry breaking |
| symmetry element | symmetry number | symmetry of relation |
| symmetry operation | symmetry properties | symmetry transformation |
| symmict | symon’s cone crusher | symon’s disk crusher |
| sympathetic detonation | sympathetic vibration | sync separator |
| sync signal | synchro | synchro control transformer |
| synchro control transmitter | synchro differential motor | synchro differential receiver |
| synchro differential transmitter | synchro receiver | synchro system |
| synchro transmitter | synchro-shutter | synchrocyclotron |
| synchromatic torque converter | synchromesh | synchronise |
| synchronising | synchronising bar | synchronising current |
| synchronising power surge | synchronism | synchronization |
| synchronization indicator | synchronized blocking oscillator | synchronized shifting |
| synchronizing generator | synchronizing pulse | synchronizing reactor |
| synchronizing signal | synchronoscope | synchronous |
| synchronous booster converter | synchronous capacitor | synchronous clock |
| synchronous condenser | synchronous converter | synchronous data transmission |
| synchronous data-link control | synchronous detector | synchronous gate |
| synchronous generator | synchronous induction motor | synchronous machine |
| synchronous motor | synchronous operation | synchronous orbit |
| synchronous phase modifier | synchronous reactance | synchronous rectifier |
| synchronous rotation | synchronous scope | synchronous speed |
| synchronous switch | synchronous system | synchronous timing |
| synchronous vibrator | synchronous voltage | synchroscope |
| synchrotron | synchrotron process | synchrotron radiation |
| syncline | synclinorium | syneresis |
| synergic curve | syngenesis | syngenetic |
| synodic | synodic month | synodic period |
| synonym | synopsis | synoptic chart |
| synoptic code | synoptic meteorology | synoptic model |
| synoptic report | synoptic wave chart | synoptic weather observation |
| synorogenic | syntactics | syntaxis |
| syntectic | syntexis | synthesis |
| synthesis gas | synthesizer | synthetic |
| synthetic aperture | synthetic chemistry | synthetic crude |
| synthetic detergent | synthetic division | synthetic fiber |
| synthetic fuel | synthetic gas | synthetic gem |
| synthetic geometry | synthetic graphite | synthetic lubricant |
| synthetic mica | synthetic quartz | synthetic resin |
| synthetic rubber | synthetic sand | synthetic-aperture radar |
| syntony | syphon | syrupy |
| system | system analysis | system bandwidth |
| system effectiveness | system life cycle | system of co-axial circle |
| system of equation | system of real numbers | system of unit |
| system reliability | system safety | system safety engineering |
| systematic distortion | systematic error | systematic examination |
| systematic joints | systematic nomenclature | systematic sampling |
| systematic support | systems analysis | systems engineering |
| systems implementation test | syzygy | szechtman cell |
| szilard-chalmers effect |