/ Dictionary / Index G gum arabic: Meaning and Definition of Find definitions for: gum' ar'abic Pronunciation: [key] a water-soluble, gummy exudate obtained from the acacia tree, esp. Acacia senegal, used as an emulsifier, an adhesive, in inks, and in pharmaceuticals. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. gum ammoniac gumball Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language