- the part of a plant embryo directly below the cotyledons, forming a connection with the radicle.
Origin of hypocotyl
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for hypocotyl
The rodlike part is called the hypocotyl (meaning under the cotyledons).
Hypocotyle, or Hypocotyl, part of stem below the cotyledons, 11.The Elements of Botany
The part of the stem below the cotyledons (hypocotyl) commonly plays the greater part in bringing this about.
In consequence the hypocotyl forms an arch, dragging after it the bulky cotyledons.
A later stage shows the hypocotyl lifting the cotyledon upward.
- the part of an embryo plant between the cotyledons and the radicle
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
- 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.
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