radicle
/ˈrædɪkl/noun
1- Botany the part of a plant embryo that develops into the primary root【植】胚根。
1.1
- Anatomy a root-like subdivision of a nerve or vein【剖】（神经或血管的）小根, 细根。
派生词
radicular
adjective （Anatomy 【剖】）词源
late 17th cent.: from Latin radicula, diminutive of radix, radic- 'root'.