aspi - auto
- aspiration psychrometer
- assembler
- assembler language
- assembling
- assembly
- assembly defect
- assembly drawing
- assembly equipment
- assembly facilities
- assembly fixture
- assembly method
- assembly program
- assembly room
- assembly station
- assembly yield
- assigned frequency
- assistating current magnetic biasing
- associative memory
- associative storage
- ast
- astable
- astable circuit
- astable multivibrator
- astatic
- astatic ammeter
- astatic control
- astatic galvanometer
- astatic governor
- astatic instrument
- astatic needle
- astatic regulator
- astatic system
- astatic type
- astatic wattmeter
- astatism
- astatism of 1st order
- astatism of n order
- astigmatism
- astl
- astrionics
