/ Dictionary / Index G glume: Meaning and Definition of Find definitions for: glume Pronunciation: (glm), [key] — n. Bot. one of the characteristic chafflike bracts of the inflorescence of grasses, sedges, etc., esp. one of the pair of bracts at the base of a spikelet. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: glume (Thesaurus) glumaceous gluon Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language