/ Dictionary / Index G glaucous: Meaning and Definition of Find definitions for: glau•cous Pronunciation: (glô'kus), [key] — adj. light bluish-green or greenish-blue. covered with a whitish bloom, as a plum. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: glaucous (Thesaurus) glaucophane glaucous gull 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