- aluminization
- aluminizing
- aluminothermic
- aluminothermic welding
- aluminous
- aluminous laterals
- aluminum
- aluminum cable
- aluminum conductor
- aluminum foil
- alunite
- alure
- alves
- alveus
- alvus
- always
- amalgam
- amalgam solution
- amalgamate
- amalgamated
- amalgamized
- amanita muscaria
- amaril
- amateur
- amateur station
- amber
- amber mica
- ambience
- ambient
- ambient air
- ambient condition
- ambient light
- ambient medium
- ambient noise
- ambient temperature
- ambiguity
- ambiguity function
- ambiguous
- ambiguous definition
- ambipolar
- ambisexual
- ambit
- ambulance
- ambulatory
- ambursen dam
- amelioration
- amend
- amending process
- amendment
- amenities
- amenity
- American basement
- American English
- amicable numbers
- ammeter
- ammonia
- ammonia gas
- ammonia liquor
- ammonia piping
- amorphous coating
- amorphous materials
- amortisseur
- amortization
- amortization period
- amount
- amp
- amp-hr
- amperage tube
- ampere law
- amphibious
- amphibious car
- amphibious vehicle
- amphitheater
- ample
- amplification
- amplifier
- amplifier balanced
- amplifier inverter
- amplifiers
- amplitude
- amplitude balance
- amplitude filter
- amplitude modulation
- amplitude separator
- amusement hall
- amusement parlor
- amygdaloidal rock
- amylose
- analectic telescope
- analog circuit
- analog computer
- analog data
- analog device
- analog divider
- analog element
- analog multiplexer
- analog signal
- analog simulation
- analog variable
- analogue computation