/ Dictionary / Index G gonyaulax: Meaning and Definition of Find definitions for: go•ny•au•lax Pronunciation: (gō"nē-ô'laks), [key] — n. any marine dinoflagellate of the genus Gonyaulax, sometimes occurring in great numbers and causing red tide. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. -gony gonycampsis Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language