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[gloom] /glum/
noun, Botany.
one of the characteristic chafflike bracts of the inflorescence of grasses, sedges, etc., especially one of the pair of bracts at the base of a spikelet.
Origin of glume
1570-80; < Latin glūma husk enclosing a cereal grain, probably equivalent to glūb(ere) to strip the bark from + *-sma noun suffix
Related forms
glumelike, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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British Dictionary definitions for glume


(botany) one of a pair of dry membranous bracts at the base of the spikelet of grasses
the bract beneath each flower in a sedge or related plant
Derived Forms
glumaceous, adjective
glumelike, adjective
Word Origin
C18: from Latin glūma husk of corn; related to Latin glūbere to remove the bark from
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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glume in Science
One of the two chaffy bracts at the base of a grass spikelet.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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