/ Dictionary / Index G Gatun Lake: Meaning and Definition of Find definitions for: Gatun' Lake' Pronunciation: [key] an artificial lake in the Canal Zone, forming part of the Panama Canal: created by the Gatun dam. 164 sq. mi. (425 sq. km). See map under Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Gatun gauche 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