"bal - agen
- abstracted heat
- abuse
- abuse coefficient
- abutting end
- abyssinian gold
- AC
- ac1, ac3, ac4; accm
- academic laboratory
- accelerant
- accelerated aging
- accelerated bath
- accelerated combustion
- accelerated corrosion test
- accelerated creep
- accelerated quenching oil
- accelerated solution
- accelerated testing
- accelerated-life test
- accelerating electrode
- accelerating grid
- accelerating tube
- acceleration anode
- acceptance inspection
- acceptance number
- acceptance test
- acceptor (energy) level
- acceptor theory
- accessories
- accessory machinery
- accessory mineral
- Accoloy
- accomodation band
- accomodation twin
- accompanying element
- accounting machine
- accreditation of sample
- accretion
- accretive
- accumulator capsule
- accumulator container