/ Dictionary / Index E effervescent: Meaning and Definition of Find definitions for: ef•fer•ves•cent Pronunciation: (ef"ur-ves'unt), [key] — adj. effervescing; bubbling. vivacious; gay; lively; sparkling. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: effervescent (Thesaurus) effervesce effete 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