- Botany.
- the lower part of the axis of an embryo; the primary root.
- a rudimentary root; radicel or rootlet.
- (formerly) radical (def. 15).
- a small rootlike part or structure, as the beginning of a nerve or vein.
- botany
- part of the embryo of seed-bearing plants that develops into the main root
- a very small root or rootlike part
- any bodily structure resembling a rootlet, esp one of the smallest branches of a vein or nerve
- chem a variant spelling of radical (def. 11)
