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De - Pt| English Dictionary: cotyledon | by the DICT Development Group |
| 2 results for cotyledon | |
| From WordNet (r) 3.0 (2006) [wn]: | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Cotyledon \Cot`y*le"don\ (k?t`?-l?"d?n), n. [Gr.[?][?][?] a cupshaped hollow, fr. [?][?][?]. See {Cotyle}.] 1. (Anat.) One of the patches of villi found in some forms of placenta. 2. (Bot.) A leaf borne by the caulicle or radicle of an embryo; a seed leaf. Note: Many plants, as the bean and the maple, have two cotyledons, the grasses only one, and pines have several. In one African plant ({Welwitschia}) the cotyledons are permanent and grow to immense proportions. | |
