hypocotyl

[ hahy-puh-kot-l ]

/ ˌhaɪ pəˈkɒt l /

noun Botany.

the part of a plant embryo directly below the cotyledons, forming a connection with the radicle.

Origin of hypocotyl

First recorded in 1875–80; hypo- + cotyl(edon)

OTHER WORDS FROM hypocotyl

hy·po·cot·y·lous, adjective

Words nearby hypocotyl

hypochylia, hypocomplementemia, hypocorism, hypocoristic, hypocorticoidism, hypocotyl, hypocrinism, hypocrisy, hypocrite, hypocritical, hypocrystalline

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

Example sentences from the Web for hypocotyl

A lens focusses the light from O, on the hypocotyl, and that from O', on the tip of the cotyledon.
Life Movements in Plants, Volume II, 1919|Sir Jagadis Chunder Bose
Below the sheathing leaf is a narrow length which will be distinguished as the hypocotyl, and where growth is very active.
Life Movements in Plants, Volume II, 1919|Sir Jagadis Chunder Bose
The part of the stem below the cotyledons (hypocotyl) commonly plays the greater part in bringing this about.
Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1|Various
If the cotyledon be shaded and the light be permitted to fall on one side of the hypocotyl, no heliotropic curving takes place.
Life Movements in Plants, Volume II, 1919|Sir Jagadis Chunder Bose

Hence considerable doubt may be entertained as regards the supposed absence of perception in the hypocotyl of Setaria.
Life Movements in Plants, Volume II, 1919|Sir Jagadis Chunder Bose

British Dictionary definitions for hypocotyl

hypocotyl

/ (ˌhaɪpəˈkɒtɪl) /

noun

the part of an embryo plant between the cotyledons and the radicle

Derived forms of hypocotyl

hypocotylous, adjective

Word Origin for hypocotyl

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

Scientific definitions for hypocotyl

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.

单词	hypocotyl
释义	hypocotyl [ hahy-puh-kot-l ] / ˌhaɪ pəˈkɒt l / noun Botany. the part of a plant embryo directly below the cotyledons, forming a connection with the radicle. Origin of hypocotyl First recorded in 1875–80; hypo- + cotyl(edon) OTHER WORDS FROM hypocotyl hy·po·cot·y·lous, adjective Words nearby hypocotyl hypochylia, hypocomplementemia, hypocorism, hypocoristic, hypocorticoidism, hypocotyl, hypocrinism, hypocrisy, hypocrite, hypocritical, hypocrystalline Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for hypocotyl A lens focusses the light from O, on the hypocotyl, and that from O', on the tip of the cotyledon. Life Movements in Plants, Volume II, 1919\|Sir Jagadis Chunder Bose Below the sheathing leaf is a narrow length which will be distinguished as the hypocotyl, and where growth is very active. Life Movements in Plants, Volume II, 1919\|Sir Jagadis Chunder Bose The part of the stem below the cotyledons (hypocotyl) commonly plays the greater part in bringing this about. Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1\|Various If the cotyledon be shaded and the light be permitted to fall on one side of the hypocotyl, no heliotropic curving takes place. Life Movements in Plants, Volume II, 1919\|Sir Jagadis Chunder Bose Hence considerable doubt may be entertained as regards the supposed absence of perception in the hypocotyl of Setaria. Life Movements in Plants, Volume II, 1919\|Sir Jagadis Chunder Bose British Dictionary definitions for hypocotyl hypocotyl / (ˌhaɪpəˈkɒtɪl) / noun the part of an embryo plant between the cotyledons and the radicle Derived forms of hypocotyl hypocotylous, adjective Word Origin for hypocotyl 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 Scientific definitions for hypocotyl 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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