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Cotyledon   Listen
noun
Cotyledon  n.  
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.





Collaborative International Dictionary of English 0.48


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"Cotyledon" Quotes from Famous Books



... the relation of the fetal and maternal parts of a cotyledon. A portion of the uterus (A) is shown with the maternal cotyledon (BB) attached to it. The fetal portion (D) consists of a mass of very minute hairlike processes on the chorion (E), which fit into corresponding depressions ...
— Special Report on Diseases of Cattle • U.S. Department of Agriculture


Words linked to "Cotyledon" :   seed leaf


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