/ Dictionary / Index G Gilsonite: Meaning and Definition of Find definitions for: Gil•son•ite Pronunciation: (gil'su-nīt"), [key] uintaite. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Gilson gilt Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language