1/4 - agri
- 1/4 inch log rule
- a-face
- a-frame
- a-frame support
- a-tongs
- abandoned road
- abandoned tree
- abate
- abatement
- abating
- abatis
- abatis to take glue
- abaxial
- abaxial stoma
- ablactate
- ablactating
- abney level
- abnodation
- abnormal growth
- abnormal wood
- aboricultural industry
- above buttress diameter
- above water
- abraded fiber
- abrading tool
- abrasive barker
- abrasive base paper
- abrasive cloth
- abrasive cutting
- abrasive paper
- abrasive planer
- abrasive sanding
- abrasive siding
- abrasive siding machine
- abrasive slurry
- abrasive spray machine
- abruption test
- abruptly pinnate
- abruptly pinnate leaf
- abscissed
