- angular closure
- angular cutter
- angular deformation
- angular discrepancy
- angular distortion
- angular elevation
- angular force
- angular measure
- angular modulation
- angular oscillation
- angular point
- angular thread
- angular velocity
- anhidrosis
- anhydrite
- anhydrous
- aniline point
- animated
- animus
- anisochronous
- anneal
- annealing temperature
- annual discharge
- annuity
- annular
- annular gear
- annular kiln
- annular plate
- annular section
- annular vault
- annunciator
- anode voltage
- anomalistic
- anomaly finder
- anonymous
- anorganic
- answer
- answer mode
- answering
- antagonistic soring
- ante-room
- antechamber
- antenna aperture
- antenna counterpoise
- antenna dome
- antenna switch
- anterior surface
- antiglare
- antihidrotic
- antihum
- antihyperbolic functions
- antiinduction
- antiknock
- antiknock compound
- antilogarithm
- antimagnetic
- antimetal
- antimicrophonic
- antimode
- antinode
- antinoise
- antinomy
- antiparallel
- antiparasitic
- antipercolating screen
- antiphase
- antiphase pumping
- antipodal
- antipole
- antiputrescent
- antipyrine
- antique
- antiquing
- antiquity
- antiradar coating
- antiradar device
- antireflection coating
- antiresonance
- antiresonant circuit
- antirolling
- antirust
- antirust agent
- antirust coat
- antirust coating
- antirust composition
- antirust compound
- antirust paint
- antirust substance
- antirusting agent
- antirusting compound
- antirusting paint
- antiseismic
- antiseismic structure
- antisepsis
- antiseptic
- antiseptic agent
- antiseptic treatment
- antisidetone
- antiskid
- antistatic