/ Dictionary / Index E efflorescence: Meaning and Definition of Find definitions for: ef•flo•res•cence Pronunciation: (ef"lu-res'uns), [key] — n. the state or a period of flowering. an example or result of growth and development: These works are the efflorescence of his genius. the act or process of efflorescing. the resulting powdery substance or incrustation. a rash or eruption of the skin. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: efflorescence (Thesaurus) effloresce efflorescent Related Content Daily Word Quiz: sinister Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language