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more about cotyledon
cotyledon |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: 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. From WordNet r 1.6 [wn]: cotyledon n : embryonic leaf in seed-bearing plants [syn: {seed leaf}]
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