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[kawrm] /kɔrm/
noun, Botany.
an enlarged, fleshy, bulblike base of a stem, as in the crocus.
Origin of corm
1820-30; < New Latin cormus < Greek kormós a tree trunk with boughs lopped off, akin to keírein to cut off, hew
Related forms
cormlike, adjective
cormoid, adjective
cormous, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for corm


an organ of vegetative reproduction in plants such as the crocus, consisting of a globular stem base swollen with food and surrounded by papery scale leaves Compare bulb (sense 1)
Derived Forms
cormous, adjective
Word Origin
C19: from New Latin cormus, from Greek kormos tree trunk from which the branches have been lopped
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
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Word Origin and History for corm

1570s, from French corme, from Latin cornum "cornel-cherry" (but applied to service-berries in French); see cornel.

Online Etymology Dictionary, © 2010 Douglas Harper
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corm in Science
A fleshy underground stem that is similar to a bulb but stores its food as stem tissue and has fewer and thinner leaflike scales. The crocus and gladiolus produce new shoots from corms. Compare bulb, rhizome, runner, tuber.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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