/ Dictionary / Index G guar: Meaning and Definition of Find definitions for: guar Pronunciation: (gwär), [key] — n. a plant, Cyamopsis tetragonolobus, of the legume family, grown as a forage crop and for its seeds, which produce a gumused as a thickening agent and stabilizer in foods and pharmaceuticals and as sizing for paper and cloth. guar. Pronunciation: [key] guaranteed. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: guar (Thesaurus) Guaporé guaracha Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language