/ Dictionary / Index G galloon: Meaning and Definition of Find definitions for: gal•loon Pronunciation: (gu-ln'), [key] — n. a braid or trimming of worsted, silk or rayon tinsel, gold or silver, etc., usually having scalloping along both edges. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. gallonage galloot Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language