2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

Cotyledon \Cot'y*le"don\ (k?t'?-l?"d?n), noun [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) 3.0 (2006) [wn]:



1: embryonic leaf in seed-bearing plants [syn: {cotyledon}, {seed leaf}]

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Monday, March 30, 2015 2:11:37 PM Coordinated Universal Time (UTC)