hypocotyl
the part of a plant embryo directly below the cotyledons, forming a connection with the radicle.
Origin of hypocotyl
1Other words from hypocotyl
- hy·po·cot·y·lous, adjective
Words Nearby hypocotyl
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use hypocotyl in a sentence
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 BoseA 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 BoseContrary to generally accepted view the hypocotyl not only perceives but responds to light.
Life Movements in Plants, Volume II, 1919 | Sir Jagadis Chunder BoseIf 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 BoseHence 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
/ (ˌhaɪpəˈkɒtɪl) /
the part of an embryo plant between the cotyledons and the radicle
Origin of hypocotyl
1Derived forms of hypocotyl
- hypocotylous, adjective
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
[ 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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