a-battery - adobe soil
- ability rating
- abjunction
- ablactation
- ablation
- able
- ableer
- ableest
- abnodation
- abnormal
- abnormal reading
- abnormal time
- abnormality
- above par
- above the level
- above-thermal
- above-thermal neutron
- abradant
- abrade
- abrading
- abrasion
- abrasion belt grinding machine
- abrasion cutting-off machine
- abrasion hardness
- abrasion index
- abrasion marks
- abrasion resistance
- abrasion strength
- abrasion test
- abrasion tester
- abrasion testing machine
- abrasion-resistant
- abrasion-resistant steel
- abrasive action
- abrasive belt
- abrasive brick
- abrasive cleaning
- abrasive cloth
- abrasive disk
- abrasive hardness
- abrasive ink
