/ Dictionary / Index G Gibson Desert: Meaning and Definition of Find definitions for: Gib'son Des'ert Pronunciation: [key] a desert in W central Australia: scrub; salt marshes. ab. 85,000 sq. mi. (220,000 sq. km). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Gibson Gibson girl Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language