form - fun
- form class volume table
- form factor
- form growth
- form height
- form increment
- form of stand
- form point
- form point height
- form quotient
- form ratio
- form wheel
- form-height increment
- form-height line
- formaldehyde-treated
- formaldehyde-treated tall oil rosin
- formate
- formate ethyl
- formation of crop
- formation of roundwood bundle
- formation period
