[ ab-sizh-uh n, -sish- ]
/ æbˈsɪʒ ən, -ˈsɪʃ- /
the act of cutting off; sudden termination.
Botany. the normal separation of flowers, fruit, and leaves from plants.
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Words nearby abscission
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for abscission
/ (æbˈsɪʒən, -ˈsɪʃ-) /
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
Medical definitions for abscission
[ ăb-sĭzh′ən ]
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.
Scientific definitions for 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.