- alligator squeezer
- alligator wrench
- allocated block
- allocater
- allocator
- allochtonous
- allochtonous rock
- allogeneous
- allomeric
- allomorphous
- allot
- allotter
- allow
- allowable
- allowable bearing
- allowable clearance
- allowable deflection
- allowable deformation
- allowable error
- allowable limit
- allowable pressure
- allowable settlement
- allowable stress
- allowable value
- allowance
- allowed
- allowed band
- allowed sequence
- alloy
- alloy junction
- alloy semiconductor
- alloy silver
- alloy transistor
- alloyed silver
- alloying addition
- alloying metal
- allure
- alluvial
- alluvial cone
- alluvial depeter
- alluvial deposit
- alluvial deposits
- alluvial fan
- alluvial flat
- alluvial layer
- alluvial plain
- alluvial soil
- alluvial water
- alluviation
- alluvion
- alluvium
- almanac
- almost
- alnico
- alpha bombardment
- alpha display
- alpha expression
- alpha format
- alpha geometric
- alpha mosaic
- alpha particle
- alpha ray
- alpha test
- alpha testing
- alpha version
- alpha-branch
- alpha-dosimeter
- alphabet
- alphabetic
- alphabetic area
- alphabetic character
- alphabetic code
- alphabetic coding
- alphabetic data
- alphabetic order
- alphabetic position
- alphabetic record
- alphabetic string
- alphabetic type
- alphabetic value
- alphabetic word
- alphabetic-numeric
- alphanumeric
- alphanumeric area
- alphanumeric character
- alphanumeric code
- alphanumeric data
- alphanumeric display
- alphanumeric edited
- alphanumeric field
- alphanumeric indicator
- alphanumeric information
- alphanumeric instruction
- alphanumeric item
- alphanumeric keyboard
- alphanumeric line
- alphanumeric literal
- alphanumeric mask
- alphanumeric position
- alphanumeric record