| rootlet | <botany> A radicle, a little root or small branch of a root. (09 Oct 1997) |
|---|---|
| rootlet system | <plant biology> Microtubules associated with the base of the flagellum in ciliates and flagellates. Also associated with this region is the rhizoplast. (18 Nov 1997) |
| rootlets | In neuroanatomy, nerve rootlets (fila radicularia). See: filum. (05 Mar 2000) |