- anthropogenic landscape
- anthropology
- anthropopathy
- anti-chain
- anti-detonant
- anti-detonator
- anti-friction
- anti-interference
- anti-noise
- anti-oscillating
- anti-parallelogram
- antibiotic
- anticapacitance switch
- anticathode
- anticenter
- anticipate
- Anticipated inflation
- anticipated profit
- anticipatory control
- anticlinal
- anticlinal apex
- anticlinal bulge
- anticlinal core
- anticlinal crest
- anticlinal fold
- anticlinal high
- anticlinal limb
- anticlinal nose
- anticlinal ridge
- anticline
- anticlinorium
- anticlockwise
- anticlorium
- anticoincidence
- anticoincidence circuit
- anticollision radar
- anticorrosion
- anticorrosive
- anticorrosive coating
- anticorrosive paint
- anticyclone
- antidetonant injection
- antidromic
- antifading
- antiferroelectric
- antiferromagnetic
- antifiltering curtain
- antifreeze
- antifreeze agent
- antifreeze mixture
- antifreeze solution
- antifreezing agent
- antifreezing solution
- antifriction
- antifriction alloy
- antifriction material
- antifriction metal
- antifrictional metal
- anchored bolt
- anchoring
- anchoring effort
- anchoring force
- anchorite
- AND circuit
- AND component
- AND function
- AND gate
- AND operation
- AND operator
- androgynous
- android
- anechoic chamber
- anechoic room
- anemobiagraph
- anemoclinometer
- anemogram
- anemograph
- anemometer
- anemometric
- anemoscope
- aneroid
- aneroid barograph
- aneroid barometer
- anesthetic
- angel
- anger
- angiopolesis
- angle
- angle beam
- angle blasting
- angle bracket
- angle displacement
- angle iron
- angle meter
- angle oftorsion
- angle pier
- angle reflector
- angle tracking
- angular
- angular aperture