| abandon | abandoned mine | abandonment |
| abandonment contour | abat-jour | abate |
| abatement | abattoir | abelite |
| abherent | abietine | ablation |
| ablative agent | ablative cooling | ablative material |
| ablative shielding | ablatograph | abney level |
| abnormal | abnormal place | abort |
| abort zone | abrade | abrasion |
| abrasion | abrasion index | abrasion resistance |
| abrasion test | abrasive | abrasive |
| abrasive belt | abrasive cloth | abrasive jet cleaning |
| abrasive machining | abrasive material | abrasive stone |
| abrasiveness | abreast milling | abreuvoir |
| abscissa | absolute | absolute |
| absolute blocking | absolute ceiling | absolute determination |
| absolute electrometer | absolute galvanometer | absolute instrument |
| absolute instrument | absolute magnetometer | absolute manometer |
| absolute measurement | absolute potential | absolute pressure gauge |
| absolute pressure transducer | absolute standard | absolute stop |
| absolute unit | absolute velocity | absolute volume |
| absorbed water | absorbent | absorbent cotton |
| absorbent paper | absorber | absorber |
| absorber oil | absorber valve | absorbing boom |
| absorbing well | absorption | absorption bed |
| absorption coefficient | absorption coil | absorption current |
| absorption cycle | absorption dynamometer | absorption emission pyrometer |
| absorption factor | absorption field | absorption gasoline |
| absorption hygrometer | absorption loss | absorption modulator |
| absorption oil | absorption refrigeration | absorption system |
| absorption tower | absorption wave meter | abutment |
| abutment | abutment wall | abutting joint |
| abutting tenons | acacia gum | acaricide |
| accelarating electrode | accelarating electrode grid | accelarating electrode potential |
| accelerated life test | accelerated weathering | accelerating agent |
| acceleration | acceleration | acceleration due to gravity |
| acceleration head | accelerator | accelerator |
| accelerator | accelerator catalyst | accelerator jet |
| accelerator linkage | accelerator pedal | accelerator pump |
| accelerator tube | accelerogram | accelerograph |
| accelerometer | accelerometer | accentuator |
| acceptability | acceptable quality level | acceptable reliability level |
| acceptance criteria | acceptance number | acceptance test |
| acceptor | acceptor circuit | access |
| access door | access road | access tunnel |
| accessary | accessories of conduit | accessory |
| accessory | accident frequency rate | accident severity rate |
| accordion door | accordion partition | accordion roller conveyor |
| accretion | accretion | accumulator |
| accumulator | accumulator battery | accumulator box |
| accumulator car | accumulator cell | accumulator container |
| accumulator grid | accumulator insulator | accumulator locomotive |
| accumulator switch | accuracy | accustomization |
| acicular powder | acid brittleness | acid bronze |
| acid dilution | acid jetting | acid lead |
| acid lining | acid mine drainage | acid mine water |
| acid number | acid open-hearth process | acid pickle |
| acid polishing | acid process | acid proof coating |
| acid refined oil | acid refractory | acid resistant |
| acid slag | acid soot | acid steel |
| acid wash | acid water pollution | acidizing |
| acieration | acoubuoy | acoustic array |
| acoustic center | acoustic clarifier | acoustic coupler |
| acoustic delay | acoustic detection | acoustic feedback |
| acoustic filter | acoustic generator | acoustic hologram |
| acoustic horm | acoustic jammirig | acoustic labyrinth |
| acoustic lens | acoustic line | acoustic mach meter |
| acoustic ocean current meter | acoustic plaster | acoustic position reference system |
| acoustic property | acoustic radar | acoustic radiator |
| acoustic radiometer | acoustic ratio | acoustic reflex enclosure |
| acoustic regeneration | acoustic seal | acoustic signature |
| acoustic spectrograph | acoustic strain gauge | acoustic theodolite |
| acoustic theory | acoustic tile | acoustic transducer |
| acoustic transformer | acoustic well logging | acoustical ceiling |
| acoustical insulation board | acoustical material | acoustical plaster |
| acoustical tile | acoustical treatment | acousto electronics |
| acousto optical material | acquistion | acquistion and tracking radar |
| acre | acrometer | actinograph |
| actinometer | action | activated |
| activated alumina | activated bauxite | activated carbon |
| activated charcoal | activated coal plough | activated effluent |
| activated lay | activated process | activated rosin flux |
| activated sintering | activated sludge | activated sludge process |
| activating reagent | activation | activation |
| active | active communication satellite | active component |
| active control technology | active current | active detection system |
| active earth pressure | active entry | active infrared detection system |
| active net work | active satellite | active sludge |
| active sonar | active spark | active system |
| active transducer | active workings | activity |
| activity | activity chart | activity duration |
| activity sampling | actual exhaust velocity | actual horsepower |
| actual power | actual time | actuate |
| actuated roller switch | actuating source | actuator |
| acute angle crossing | acyclic generator | ad valorem tax |
| ada mud | adamantine drill | adapter |
| adapter | adapter skrit | adaptive control system |
| adaptometer | addendum | addendum circle |
| adder | adding tape | additional agents |
| additive | additive level | adherend |
| adhesion | adhesion | adhesion |
| adhesive | adhesive bonding | adhesive force |
| adhesive strength | adhesive strength | adhesive tape |
| adiabatic curing | adiabatic engine | adiabatic extrusion |
| adit | adjab butter | adjustable base anchor |
| adjustable condenser | adjustable parallel | adjustable square |
| adjustable wrench | admiralty brass | admiralty coal |
| admittance | admixture | admixure |
| adsorbed water | adsorption | adsorption gasoline |
| adsorption system | advanced overburden | advanced signal |
| advanced slope grouting | advanced slope method | advanced stripping |
| advanced wave | advancing | advancing long wall |
| advantage | adverse slope | advertisement |
| adz | aerated | aerated concrete |
| aerated flow | aeration | aeration |
| aeration tank | aerator | aerial cableway |
| aerial discharger | aerial earthing switch | aerial photogrammetry |
| aerial photography | aerial photoreconnaissance | aerial reconnaissance |
| aerial sound ranging | aerial spud | aerial survey |
| aerial tramway | aerial view | aero elasticity |
| aerobic anaerobic lagoon | aerobic lagoon | aerobic-anaerobic interface |
| aerodrome | aeroduct | aerodynamic balance |
| aerodynamic centre | aerodynamic characteristic | aerodynamic chord |
| aerodynamic configuration | aerodynamic control | aerodynamic instability |
| aerodynamic missile | aerodynamic moment | aerodynamic stability |
| aerodynamic vehicle | aerodyne | aerofall mill |
| aerofilter | aerofoil | aerograph |
| aerometeograph | aerometer | aeromotor |
| aeronaut | aeronautical engineering | aerophysics |
| aeropulse engine | aerosol generator | aerosol propellant |
| aerospace engineering | aerospace ground equipment | aerospace industry |
| aerospace vehicle | aerostat | aerostatic balance |
| aerosurvey | aerozine | aeruchlorination |
| affreightment | african green heart | after glow |
| afterblow | afterblow body | afterblow break |
| afterblow burner | afterblow chromed | afterblow condenser |
| afterblow cooler | afterblow cooling | afterblow damp |
| afterblow filter | afterblow flaming | afterblow gas |
| afterblow tack | agate hardening | age hardening |
| age softening | ageing | agena rocket |
| agger | agglomeration | agglomeration test |
| aggregate | aggregate bin | aggregate interlock |
| aging | agitating speed | agitating truck |
| agitator | agitator body | agricultural chemical |
| agricultural lime | agricultural pipe drain | aided mechanism |
| aided ratio | aided tracking | aiguille |
| aileron | aiming circle | air |
| air | air acetyle welding | air adit |
| air airborne collision warning system | air arc furnance | air assist forming |
| air atomizing oil burner | air barrage | air base |
| air belt | air bend die | air bind |
| air blast | air blast circuit breaker | air blasting |
| air blown asphalt | air boat | air bound |
| air brake | air break switch | air breakup |
| air breathing | air brick | air cap |
| air capacitor | air carbon arc cutting | air casing |
| air chamber | air change | air circulation oven |
| air classifier | air cleaner | air compressor |
| air compressor unloader | air compressor valve | air condenser |
| air conditioner | air conditioning | air conditioning |
| air content | air conveyor | air cooled condenser |
| air cooled engine | air cooled generator | air cooled heat exchanger |
| air cooler | air cooling | air course |
| air crossing | air current | air curtain |
| air cushion | air cushion vehicle | air cycle |
| air cylinder | air density | air detector |
| air diffuser | air distributing acoustical ceiling | air door |
| air drain | air dried lumber | air dried strength |
| air drift | air drill | air drying |
| air duct | air duct | air ejector |
| air electronic survey control | air eliminator | air endway |
| air engine | air entrained concrete | air entraining agent |
| air entrainment | air exhaust ventilator | air exhauster |
| air feed | air filter | air filter |
| air float clay | air frame | air friction |
| air furnace | air gap | air gap |
| air gauge | air grating | air handling system |
| air handling unit | air hardening steel | air heater |
| air heating system | air hoist | air hole |
| air horse power | air injection system | air inlet |
| air intake | air intercept radar | air knife |
| air knife coating | air lance | air launch |
| air leakage | air lift | air lift hammer |
| air lift pump | air line | air line lubricator |
| air line main | air lock | air lock |
| air lock strip | air log | air magnetometer |
| air measuring station | air mileage indicator | air mileage unit |
| air mixing plenum | air monitoring | air morer |
| air motor | air outlet | air permeability test |
| air pocket | air pollution control | air preheater |
| air profile recorder | air propeller | air pump |
| air puncher | air purge | air radar |
| air raid shelter | air register | air regulator |
| air reheater | air release valve | air resistance thermometer |
| air ring | air scoop | air screw |
| air seasoned | air seasoned lumber | air seperator |
| air setting mortar | air shaft | air ship |
| air shot | air slide conveyor | air spring |
| air stack | air start | air starting value |
| air strip | air supply mask | air surveillance |
| air surveillance radar | air survey | air suspension system |
| air system | air terminal | air thermometer |
| air track dril | air transport | air trap |
| air valve | air vane | air vessel |
| air void | air washer | air waste |
| air water jet | air water shortage tank | air well |
| air-to-air resistance | aircraft | aircraft axes |
| aircraft bonding | aircraft detection | aircraft engine |
| aircraft fuel | aircraft instrumentation | aircraft instrumentpanel |
| aircraft propeller | aircraft propulsion | aircraft pylon |
| aircraft testing | airflow | airflow duct |
| airflow orifice | airflow pipe | airfoil |
| airfoil profile | airfoil section | airfoil shape |
| airfoil vane fan | airless apraying | airometer |
| airplane | airplane flame | airport |
| airport engineering | airproof | airspace |
| airspeed | airspeed head | airspeed indicator |
| airtight | airway | aisleway |
| alabaster glass | alarm gauge | alarm system |
| alarm value | alaska cedar | albarium |
| albedometer | alcian blue | alcohol fuel |
| alcohol meter | algebraic | alidade |
| alignment | alignment | alignment correction |
| alignment pin | alignment wire | aliva concrete sprayer |
| alive | alkali | alkaline accumulator |
| alkaline cleaner | all day efficiency | all-burnt time |
| all-burnt velocity | all-weather air port | all-weather aircraft |
| all-weather fighter | allege | allen screw |
| allen wrench | alligator squeezer | alligator wrench |
| alligatoring | allowable bearing value | allowable oil |
| allowable soil pressure | alloy | alloy |
| alloy plating | alloy steel | alloying |
| alluvial mining | alpha particle | altazimuth |
| altazimuth mounting | alternate immersion test | alternate polarity operation |
| alternate series | alternating current | alternating current arclamp |
| alternating current booster | alternating current bridge | alternating current converter |
| alternating quantity | alternating voltage | alternating-current welder |
| alternator | altigraph | altimeter |
| altimeter correction | altimeter setting | altimeter setting indicator |
| altimetry | altitude | altitude azimuth |
| altitude chamber | altitude curve | altitude datum |
| altitude difference | altitude valve | alum cake |
| alumetized steel | alumina balls | alumina brick |
| alumina bubble brick | alumina cement | alumina fiber |
| alumina porcelain | aluminium alloy | aluminium base grease |
| aluminium brass | aluminium bronze | aluminium coating |
| aluminium foil | aluminium grease | aluminium leaf electroscope |
| aluminium paint | aluminium paste | aluminium powder |
| aluminium silicon alloy | aluminium silicon bronze | aluminium soap grease |
| aluminium solder | aluminothermy | amalgam |
| amalgam retort | amalgamate | amalgamation |
| amalgamation pan | amalgamator | amber glass |
| amber oil | ambient | ambient temperature |
| amino plastic | ammeter | ammeter |
| ammeter ammonia compressor | ammeter condenser | ammeter gelatin |
| ammeter shunt | ammeter valve | amoebicide |
| amorphous | amorphous film | amortiseur winding |
| amount limit | ampere | ampere balance |
| ampere conductor | ampere hour nieter | ampere turn |
| ampere`s principle | ampere`s rule | amphi |
| amphibious | amplification | amplification factor |
| amplifier | amplifier | amplifier type meter |
| amplify | amplifying | amplitude |
| amplitude modulated indicator | amplitude modulation | amplitude-frequency response |
| analogue computer | analyser | analysis |
| analytical balance | analytical photogrammetry | analytical photography |
| analytical phototriangulation | analytical radar prediction | analytical radial triangulation |
| analytical ultracentrifuge | analyzer | anchor |
| anchor block | anchor bolt | anchor bolt |
| anchor buoy | anchor log | anchor nut |
| anchor pile | anchor plate | anchor rod |
| anchor station | anchor tower | anchor wall |
| anchorage | anchorage deformation | anderson`s bridge |
| anemoclinometer | anemogram | anemograph |
| anemometer | anemoscope | anemovane |
| aneroid altimeter | aneroid barograph | aneroid barometer |
| aneroid calorimeter | aneroid capsule | aneroid diaphragm |
| aneroid flowmeter | aneroid liquid-level meter | aneroid value |
| aneroidograph | angle | angle back-pressure valve |
| angle bar | angle bead | angle beam |
| angle blasting | angle block | angle board |
| angle bond | angle brace | angle brick |
| angle clip | angle closer | angle cut |
| angle divider | angle dozer | angle filler |
| angle fishplate | angle float | angle gauge |
| angle gear | angle insulator | angle iron |
| angle joint | angle lacing | angle mark |
| angle of action | angle of advance | angle of approach |
| angle of attack | angle of bite | angle of cant |
| angle of climb | angle of departure | angle of depression |
| angle of descent | angle of deviation | angle of elevation |
| angle of emergence | angle of glide | angle of incidence |
| angle of internal friction | angle of minimum deviation | angle of nip |
| angle of obliquity | angle of pitch | angle of pressure |
| angle of recess | angle of reflection | angle of refraction |
| angle of repose | angle of rest | angle of roll |
| angle of slide | angle of stall | angle of thread |
| angle of wall friction | angle of yaw | angle paddle |
| angle plate | angle post | angle press |
| angle rafter | angle section | angle stem thermometer |
| angle strut | angle tie | angle value |
| angstrom unit | angular accelerometer | angular advance |
| angular aggregate | angular clearance | angular contact bearing |
| angular cutter | angular dispersion | angular error of closure |
| angular gear | angular lead | angular magnification |
| angular milling | angular pitch | angular radius |
| angular shear | angular spacing | angular velocity |
| angulator | anhydrous | animal black |
| animal glue | animal oil | animal power |
| anion | anionic detergent | anneal |
| annealing | annealing furnace | annealing omen |
| annual cost comparison | annular | annular |
| annular auger | annular gear | annular nozzle |
| annular portion | annular section | annulus |
| anode | anode characteristics | anode conductance |
| anode converter | anode copper | anode corrosion |
| anode coupling | anode current | anode density |
| anode effect | anode furnace | anode metal |
| anode modulator | anode mud | anode ray |
| anode rectification | anode resistance | anode resistor |
| anode scrap | anode slime | anodic cleaning |
| anodic coating | anodic cold clean | anodic pickling |
| anodic protection | anodic reaction | anodising |
| anodize | anomoly finder | anteniedium |
| antenna | antenna tilt error | anthill |
| anti smudge ring | anti-icing | antiacid additive |
| antiacid bronze | anticlockwise | anticollision radar |
| anticorrosive paint | anticreeper | antidesiccant |
| antidetonant | antidirt insulator | antidrag |
| antifading aerial | antifogging compound | antifouling coating |
| antifriction | antifriction alloy | antifriction bearing |
| antifriction material | antifungal agent | antiknock |
| antiknock blending value | antiknock gasoline | antiknock rating |
| antimagnetic | antinode | antinoise microphone |
| antiparticles | antique finish | antiquing |
| antireflecting coating | antiresonance | antiskid plate |
| antislip metal | antislip paint | antistat |
| antistatic agent | antivibration device | anvil |
| anvil | anyris oil | aperture |
| apex | apex | apparatus |
| apparent | apparent brightness | apparent efficiency |
| apphorometer | appliance | application |
| applied research | applied-electromotive force | applied-potential |
| applied-voltage | approach | approach |
| approach signal | approved flame safety lamp | apron |
| apron conveyor | apron feeder | apron flashing |
| apron lining | apron piece | apron rail |
| apron wall | aqualung | aqueduct |
| aqueous | aramite | arbitrary |
| arbitration | arbitration bar | arbor |
| arbor collar | arbor hole | arbor press |
| arbor support | arbor vitae oil | arc |
| arc | arc blow | arc brazing |
| arc control | arc cutting | arc cutting |
| arc discharge | arc furnace | arc furnace |
| arc generator | arc gouging | arc heating |
| arc jet engine | arc lamp | arc melting |
| arc of action | arc of approach | arc of contact |
| arc of recess | arc radiation furnace | arc rectifier |
| arc resistance | arc seam weld | arc spot weld |
| arc spraying | arc stream | arc suppression coil |
| arc suppressor | arc time | arc triangulation |
| arc voltage | arc wall coal cutter | arc welding |
| arc welding | arch | arch band |
| arch bar | arch beam | arch block |
| arch brace | arch brick | arch bridge |
| arch centre | arch corner bed | arch dam |
| arch gravity dam | arch grider | arch press |
| arch ring | arch rip | arch truss |
| arching | architectural acousitics | architectural bronze |
| architectural concrete | architectural engineering | architectural mill work |
| architectural terra-cota | architectural volume | architecture |
| arcing | area coverage | area drain |
| area hight | area land fill | area meter |
| area rule | area survey | area triangulation |
| argand lamp | argentometer | argil |
| argol | arm | arm conveyor |
| arm elevator | armature | armature core |
| armature reaction | armature winding | armor castings |
| armored faceplate | armored front | armored wood |
| armoured cable | armoured conductor | armouring |
| array | arrester | arrester |
| arrester hook | arris fillet | arris gutter |
| arris rail | arrissing tool | arrival rate |
| arrow wing | articulated drop chute | articulated structure |
| articulated train | artificial aging | artificial asteroid |
| artificial electric organ | artificial feel | artificial granity |
| artificial harbour | artificial monument | artificial nourishment |
| artificial recharge | artificial satellite | artificial variable |
| artificial ventilation | artificial voice | artificial weathering |
| as-brazed | as-welded | asbestine |
| asbestos | asbestos blanket | asbestos board |
| asbestos cement | asbestos cement cladding | asbestos cement pipe |
| asbestos felt | asbestos insulation | asbestos plaster |
| asbestos roofing | asbestos shingle | ascending vertical angle |
| ascent | ash | ash collector |
| ash content | ash conveyor | ash dump |
| ash furnace | ash pan | ash pit |
| ash pit door | ashlar | ashlar brick |
| ashlar line | aspect | aspect angle |
| aspect ratio | asphalt | asphalt base |
| asphalt block | asphalt cement | asphalt cutter |
| asphalt emulsion | asphalt emulsion slurry seal | asphalt flux |
| asphalt fog seal | asphalt heater | asphalt lamination |
| asphalt levelling course | asphalt macadam | asphalt mastic |
| asphalt overlay | asphalt paint | asphalt paper |
| asphalt pavement | asphalt primer | asphalt roofing |
| asphalt shingle | asphalt soil stabilization | asphalt tile |
| asphaltic concrete | asphaltic road oil | asphaltum |
| aspirating | aspirating burner | aspirating screen |
| aspiration meteorograph | aspiration psychrometer | aspiration thermograph |
| aspirator | assault aircraft | assay balance |
| assay bar | assay plan | assay value |
| assay wall | assembled stone | assembling bolt |
| assembly | assembly balancing | assembly line |
| assembly method | assembly time | assessment drilling |
| assessment work | assignable cause | assize |
| Assmann psychrometer | associated gas | assumed plane coordinate |
| assumption | assured mineral | astable |
| astatic galvanometer | astatic governor | astatic gravimeter |
| astatic magnetometer | astatic watt meter | astatized gravimeter |
| astel | asthemalize | astragal |
| astragal front | astral lamp | astrihaytics |
| astrodome | astrodynamics | astrolab |
| astronaut | astronautical engineering | astronautical instrument |
| astronautical theodolite | astronautical traverse | asymmetric |
| asymmetric rotor | asymptotic | asynchronous |
| asynchronous generator | asynchronous timing | at-verit |
| atmometer | atmosphere | atmospheric braking |
| atmospheric condenser | atmospheric cooler | atmospheric corrosion |
| atmospheric entry | atmospheric impurity | atmospheric pressure |
| atmospheric steam curing | atomic battery | atomic hydrogen |
| atomic hydrogen welding | atomic moisture meter | atomic reactor |
| atomic rocket | atomic weight | atomization |
| atomizer | atomizer burner | atomizer mill |
| atomizing humidifier | attack plane | attemperation |
| attemperation of steam | attenuate | attenuation |
| attenuation factor | attenuator | attic |
| attic tank | attic ventilator | attitude |
| attitude control | attitude gyro | attitude indicator |
| attitude jet | attracted armature type | attraction |
| attribute sampling | attributes testing | attrition |
| attrition mill | atwood machine | audibility |
| audible leak detector | audio | audio amplifier |
| audio current | audio frequency | audio frequency amplification |
| audio frequency transformer | audio meter | audio patch bay |
| audio phone | audio signal | audio spectrometer |
| audio system | audio-frequency meter | auditorium |
| auger | auger | auger bit |
| auger boring | auger boring | auger conveyor |
| auger drilling | auger packer | auget |
| augmentation system | augmenter tube | augustin process |
| auto capacitative coupling | auto condenser | auto emission |
| auto transformer | auto transformer starter | auto vapour system |
| autoclave | autoclave curing | autoclave molding |
| autofrettage | autogeneous curing | autogenous grinding |
| autogenous healing | autogenous mill | autogenous volume change |
| autogenous welding | autogiro | autoignition |
| automanual system | automata theory | automatic |
| automatic | automatic arc welding | automatic batcher |
| automatic brazing | automatic break | automatic breaker |
| automatic casing hanger | automatic controller | automatic coupling |
| automatic dam | automatic data processing | automatic door bottom |
| automatic drill | automatic expander | automatic fire pump |
| automatic flushing system | automatic gain control | automatic generator |
| automatic microfiller | automatic mould | automatic press |
| automatic protection | automatic reclosing | automatic record changer |
| automatic resynchronising | automatic sampler | automatic screw machine |
| automatic signalling | automatic spider | automatic stability |
| automatic stabilization equipment | automatic steering control | automatic stoker |
| automatic substation | automatic tank battery | automatic test equipment |
| automatic threshold closer | automatic time switch | automatic track shift |
| automatic traffic control system | automatic type belt tensioning device | automatic typewriter |
| automatic voltage regulator | automatic volume compressor | automatic wagon control |
| automatic weather station | automatic welding | automatic wet-pipe sprinkler system |
| automation | automation | automobile |
| automobile | automobile chassis | automotive air conditioning |
| automotive body | automotive brake | automotive engine |
| automotive engineering | automotive frame | automotive fuel |
| automotive ignition system | automotive steering | automotive suspension |
| automotive transmission | automotive vehicle | autopilot |
| autoradiography | autorail | autoranging |
| autoreducing tachcoymeter | autostoper | auxiliary |
| auxiliary anode | auxiliary anode | auxiliary contact relay |
| auxiliary dead latch | auxiliary electrode | auxiliary energy |
| auxiliary fan | auxiliary fluid ignition | auxiliary heat |
| auxiliary landing gear | auxiliary potential transformer | auxiliary power plant |
| auxiliary raffer | auxiliary reinforcement | auxiliary relay |
| auxiliary rim lock | auxiliary rope-fastening device | auxiliary switch |
| auxiliary thermometer | auxiliary transformer connection | auxiliary tripping relay |
| auxiliary unit | auxometer | available draft |
| avalanche | aven | average |
| average acoustic output | average annual rain-fall | average assay value |
| average candle power | average discount factor | average outgoing quality limit |
| averaging device | aviation | aviation gasoline |
| aviation mix | avionics | avocado oil |
| avoidable delay | awaning window | axe |
| axed brick | axes of an aircraft | axhammer |
| axial | axial fan | axial flow compressor |
| axial flow jet engine | axial flow pump | axial flow turbine |
| axial force diagram | axial hydraulic thrust | axial length |
| axial line | axial load | axial rake |
| axial relief | axial strain | axial type mass flowmeter |
| axial winding | axis | axis freedom |
| axis of sighting | axis of weld | axle |
| axle box | axle grease | axometer |
| ayacut | azimuth | azimuth |
| azimuth bar | azimuth circle | azimuth dial |
| azimuth error | azimuth indicator | azimuth instrument |
| azimuth line | azimuth marker | azimuth scale |
| azimuth transfer | azimuth transverse | blasting abrasive |