| 单词 | radicle |
| 释义 | radicle /rad"i keuhl/, n. 1. Bot. a. the lower part of the axis of an embryo; the primary root. See diag. under plumule. b. a rudimentary root; radicel or rootlet. 2. Chem. (formerly) radical (def. 12). 3. Anat. a small rootlike part or structure, as the beginning of a nerve or vein. [1665-75; < L radicula small root, equiv. to radic- (s. of radix) ROOT1 + -ula -ULE] |
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