abscission
[ ab-sizh-uh n, -sish- ]
/ æbˈsɪʒ ən, -ˈsɪʃ- /
noun
the act of cutting off; sudden termination.
Botany. the normal separation of flowers, fruit, and leaves from plants.
RELATED WORDS
Nearby words
abscess, abscind, abscise, abscisic acid, abscissa, abscission, abscission layer, abscission zone, abscond, abscondee, abscondence
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for abscission
abscission
/ (æbˈsɪʒən, -ˈsɪʃ-) /
noun
the separation of leaves, branches, flowers, and bark from plants by the formation of an abscission layer
the act of cutting off
Word Origin for abscission
C17: from Latin abscissiōn-, from ab- 1 + scissiō a cleaving
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
Medicine definitions for abscission
abscission
[ ăb-sĭzh′ən ]
n.
The act of cutting off or away.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Science definitions for abscission
abscission
[ ăb-sĭzh′ən ]
The separation of a leaf, flower, or fruit from a plant as a result of natural structural and chemical changes.♦ The abscission zone is a layer of weak, thin-walled cells that form across the base of the plant part where the break eventually occurs. A corky layer containing suberin forms beneath the abscission zone to protect the plant.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.