/ Dictionary / Index M monosodium glutamate: Meaning and Definition of Find definitions for: monoso'dium glu'tamate Pronunciation: [key] a white, crystalline, water-soluble powder, CHNNaO&multiplydot;HO, used to intensify the flavor of foods. Also calledCf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. monosodium monosome Related Content Daily Word Quiz: diurnal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language