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hypocotyl

[hahy-puh-kot-l] /ˌhaɪ pəˈkɒt l/
noun, Botany
1.
the part of a plant embryo directly below the cotyledons, forming a connection with the radicle.
Origin
1875-1880
1875-80; hypo- + cotyl(edon)
Related forms
hypocotylous, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for hypocotyl
  • Once the hypocotyl arch emerges from the soil, it straightens out.
  • The hypocotyl grows leaves and flowers on stems, either one flower or one leaf per stem.
British Dictionary definitions for hypocotyl

hypocotyl

/ˌhaɪpəˈkɒtɪl/
noun
1.
the part of an embryo plant between the cotyledons and the radicle
Derived Forms
hypocotylous, adjective
Word Origin
C19: from hypo- + cotyl(edon)
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
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hypocotyl in Science
hypocotyl
  (hī'pə-kŏt'l)   
The part of a plant embryo or seedling that lies between the radicle and the cotyledons. Upon germination, the hypocotyl pushes the cotyledons above the ground to develop. It eventually becomes part of the plant stem. Most seed-bearing plants have hypocotyls, but the grasses have different, specialized structures.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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