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Definition of Cotyledon

Babylon English

primary leaf produced by a seed
Cotyledon Definition from Arts & Humanities Dictionaries & Glossaries
JM Latin-English Dictionary
plant| navelwort
Cotyledon Definition from Language, Idioms & Slang Dictionaries & Glossaries
Webster's Revised Unabridged Dictionary (1913)
One of the patches of villi found in some forms of placenta.
A leaf borne by the caulicle or radicle of an embryo; a seed leaf.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. About
hEnglish - advanced version

\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.

  similar words(1) 

 lewisia cotyledon 
WordNet 2.0

1. embryonic leaf in seed-bearing plants
(synonym) seed leaf
(hypernym) cataphyll
Cotyledon Definition from Science & Technology Dictionaries & Glossaries
A Botanical Glossary of Taxonomic Terminology
seed-leaf; primary leaf or leaves in an embryo
Cotyledon Definition from Encyclopedia Dictionaries & Glossaries
English Wikipedia - The Free Encyclopedia
A cotyledon (; "seed leaf" from Latin cotyledon, from Greek: κοτυληδών kotylēdōn, gen.: κοτυληδόνος kotylēdonos, from κοτύλη kotýlē "cup, bowl") is a significant part of the embryo within the seed of a plant, and is defined by the Oxford English Dictionary as "The primary leaf in the embryo of the higher plants (Phanerogams); the seed-leaf." Upon germination, the cotyledon may become the embryonic first leaves of a seedling. The number of cotyledons present is one characteristic used by botanists to classify the flowering plants (angiosperms). Species with one cotyledon are called monocotyledonous ("monocots"). Plants with two embryonic leaves are termed dicotyledonous ("dicots") and placed in the class Magnoliopsida.

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Cotyledon Definition from Entertainment & Music Dictionaries & Glossaries
English to Federation-Standard Golic Vulcan