air - anti
- alkylate rerun tower
- alkylates
- alkylation
- alkylation acid
- alkylation gasoline
- alkylation plant
- alkylenes
- alkyllithium initiator
- alkylsulfate
- alkylsulfonate
- alkyne series
- alkynes
- all electric drive robot
- all engines speed
- all stations call
- all terrain vibrator
- all-(a)round fastness
- all-(a)round fastness
- all-aft vessel
- all-altitude aerospaceplane
- all-around infinite body
- all-around looking
- all-around winter lubricant
- all-band antenna
- all-basic furnace
- all-basic lining
- all-body aircraft
- all-burn acceleration
- all-carbon composite
- all-cargo aircraft
- all-cargo airline
- all-cargo [all-freight] service
- all-ceramic melter
- all-chemical laser
- all-composite airframe
- all-cryogenic stage
- all-dielectric interference filter
- all-digital audio mixing console
- all-digital center
- all-digital display