/ Dictionary / Index G gum guaiac: Meaning and Definition of Find definitions for: gum' guai'ac Pronunciation: [key] guaiac. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. gum eraser gumi Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language