0-po - air
- 0-position
- 3-roll feed-zone idler
- 3-roll troughed idler
- A
- a-contact
- A-frame
- A.V.
- A.V.R.
- A/D converter
- abbreviation acronym
- abend
- ability
- able
- able to function
- able to negotiate curves
- able to take the maximum load
- abney level
- abnormal condition
- abnormal end
- abort
- about-sledge hammer
- above ground
- above mean sea level
- above-floor and under-floor wheel lathe
- above-listed
- abrade
- abrase
- abrasion
- abrasion factor
- abrasion resistance
- abrasion rod
- abrasion surface
- abrasion test
- abrasion-free
- abrasion-reducing
- abrasion-reducing additive
- abrasion-resistant
- abrasive
- abrasive belt
- abrasive blast cleaning
