cotyledon

[ kot-l-eed-n ]

/ ˌkɒt lˈid n /

noun Botany.

the primary or rudimentary leaf of the embryo of seed plants.

Anatomy. any of several lobules of the placenta.

Origin of cotyledon

1535–45; <Latin: navelwort <Greek kotylēdṓn a plant (probably navelwort), literally, a cuplike hollow, derivative of kotýlē cup

OTHER WORDS FROM cotyledon

cot·y·le·don·al, cot·y·le·don·ar·y

[kot-l-eed-n-er-ee], /ˌkɒt lˈid nˌɛr i/, cot·y·le·don·ous, adjectivenon·cot·y·le·don·al, adjectivenon·cot·y·le·don·ar·y, adjectivenon·cot·y·le·don·ous, adjective

pseu·do·cot·y·le·don·al, adjectivepseu·do·cot·y·le·don·ar·y, adjective

Words nearby cotyledon

cottus, cotula, cotunnite, coturnix, Coty, cotyledon, cotyloid, cotyloid cavity, cotyloid joint, cotylosaur, cotype

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for cotyledon

The cotyledon c envelops the young bud, which protrudes at the slit during germination.
Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3|Various
The name Echeveria is now given up by botanists for Cotyledon.
The Practical Garden-Book|C. E. Hunn
The term monocotyledon is applied to these plants because the embryo has only one cotyledon or seed-leaf.
The Sea Shore|William S. Furneaux
Within the cotyledon will be found a little growing shoot pointed toward the top of the kernel.
The First Book of Farming|Charles L. Goodrich

The epiblast has been regarded as representing a second cotyledon, but this is a very doubtful interpretation.
Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3|Various

British Dictionary definitions for cotyledon

cotyledon

/ (ˌkɒtɪˈliːdən) /

noun

a simple embryonic leaf in seed-bearing plants, which, in some species, forms the first green leaf after germination

a tuft of villi on the mammalian placenta

Derived forms of cotyledon

cotyledonous or cotyledonoid, adjectivecotyledonal, adjectivecotyledonary, adjective

Word Origin for cotyledon

C16: from Latin: a plant, navelwort, from Greek kotulēdōn, from kotulē cup, hollow

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for cotyledon

cotyledon

[ kŏt′l-ēd′n ]

n.

One of the lobules constituting the uterine side of the placenta, consisting mainly of a rounded mass of villi.

A leaf of the embryo of a seed plant, which, upon germination, either remains in the seed or emerges, enlarges, and becomes green; a seed leaf.

Scientific definitions for cotyledon

cotyledon

[ kŏt′l-ēd′n ]

A leaf of the embryo of a seed-bearing plant. Most cotyledons emerge, enlarge, and become green after the seed has germinated. Cotyledons either store food for the growing embryo (as in monocotyledons) or absorb food that has been stored in the endosperm (as in other angiosperms) for eventual distribution to the growing parts of the embryo. Also called seed leaf See more at eudicotyledon monocotyledon.

单词	cotyledon
释义	cotyledon [ kot-l-eed-n ] / ˌkɒt lˈid n / noun Botany. the primary or rudimentary leaf of the embryo of seed plants. Anatomy. any of several lobules of the placenta. Origin of cotyledon 1535–45; <Latin: navelwort <Greek kotylēdṓn a plant (probably navelwort), literally, a cuplike hollow, derivative of kotýlē cup OTHER WORDS FROM cotyledon cot·y·le·don·al, cot·y·le·don·ar·y [kot-l-eed-n-er-ee], /ˌkɒt lˈid nˌɛr i/, cot·y·le·don·ous, adjectivenon·cot·y·le·don·al, adjectivenon·cot·y·le·don·ar·y, adjectivenon·cot·y·le·don·ous, adjective pseu·do·cot·y·le·don·al, adjectivepseu·do·cot·y·le·don·ar·y, adjective Words nearby cotyledon cottus, cotula, cotunnite, coturnix, Coty, cotyledon, cotyloid, cotyloid cavity, cotyloid joint, cotylosaur, cotype Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for cotyledon The cotyledon c envelops the young bud, which protrudes at the slit during germination. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3\|Various The name Echeveria is now given up by botanists for Cotyledon. The Practical Garden-Book\|C. E. Hunn The term monocotyledon is applied to these plants because the embryo has only one cotyledon or seed-leaf. The Sea Shore\|William S. Furneaux Within the cotyledon will be found a little growing shoot pointed toward the top of the kernel. The First Book of Farming\|Charles L. Goodrich The epiblast has been regarded as representing a second cotyledon, but this is a very doubtful interpretation. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3\|Various British Dictionary definitions for cotyledon cotyledon / (ˌkɒtɪˈliːdən) / noun a simple embryonic leaf in seed-bearing plants, which, in some species, forms the first green leaf after germination a tuft of villi on the mammalian placenta Derived forms of cotyledon cotyledonous or cotyledonoid, adjectivecotyledonal, adjectivecotyledonary, adjective Word Origin for cotyledon C16: from Latin: a plant, navelwort, from Greek kotulēdōn, from kotulē cup, hollow Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Medical definitions for cotyledon cotyledon [ kŏt′l-ēd′n ] n. One of the lobules constituting the uterine side of the placenta, consisting mainly of a rounded mass of villi. A leaf of the embryo of a seed plant, which, upon germination, either remains in the seed or emerges, enlarges, and becomes green; a seed leaf. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for cotyledon cotyledon [ kŏt′l-ēd′n ] A leaf of the embryo of a seed-bearing plant. Most cotyledons emerge, enlarge, and become green after the seed has germinated. Cotyledons either store food for the growing embryo (as in monocotyledons) or absorb food that has been stored in the endosperm (as in other angiosperms) for eventual distribution to the growing parts of the embryo. Also called seed leaf See more at eudicotyledon monocotyledon. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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