lˈid noun Botany.
1.
the primary or rudimentary leaf of the embryo of seed plants.
2.
Anatomy. any of several lobules of the placenta.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Link To cotyledon
00:10
Cotyledon
is always a great word to know.
So is iris. Does it mean:
| a series of paired nerves that originate in the spinal cord and emerge, branching out to the region of the neck, trunk, or limbs |
| the colored portion of the eye that contains a circular opening, the pupil, in its center |
Collins
World English Dictionary
cotyledon (ˌkɒtɪˈliːdən) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) | |
| —n | |
| 1. | a simple embryonic leaf in seed-bearing plants, which, in some species, forms the first green leaf after germination |
| 2. | a tuft of villi on the mammalian placenta |
| [C16: from Latin: a plant, navelwort, from Greek kotulēdōn, from kotulē cup, hollow] | |
| coty'ledonous | |
| —adj | |
| coty'ledonoid | |
| —adj | |
| coty'ledonal | |
| —adj | |
| coty'ledonary | |
| —adj | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History
cotyledon
from 1540s, in various sense, from L. cotyledon "pennywort, navelwort," from Gk. kotyledon "cup-shaped cavity," from kotyle "hollow thing, small vessel," also the name of a small liquid measure. Botanical sense is 1776, from Linnaeus (1751).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary
cotyledon cot·y·le·don (kŏt'l-ēd'n)
n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
cotyledon  (kŏt'l-ēd'n) Pronunciation Key
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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