- acid brick
- acid brittleness
- acid catalyst
- acid determination
- acid fallout
- acid leach
- acid mark
- acid number
- acid pig
- acid plant
- acid process
- acid rain
- acid slag
- acid solutaon
- acid solution
- acid stress
- acid test
- acid-free
- acid-lined
- acid-resistant
- acidic
- acidic rain
- acidifiable
- acidify
- acidimetric
- aciding
- acidize
- acidulating
- accumulated discrepancy
- accumulated energy
- accumulated frost
- accumulating
- accumulating tank
- accumulation
- accumulation point
- accumulator
- accumulator box
- accumulator plate
- accumulator register
- accurate adjusting
- accurate measurement
- acedia
- acentric
- acervuline
- acetate adhesive
- acetate glue
- acetone
- acetone resin
- acetylate
- acetylene