/ Dictionary / Index G galleass: Meaning and Definition of Find definitions for: gal•le•ass Pronunciation: (gal'ē-as"), [key] — n. Naut. a fighting galley, lateen-rigged on three masts, used in the Mediterranean Sea from the 15th to the 18th centuries. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Galle Gallegos 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