/ Dictionary / Index I iridescent: Meaning and Definition of Find definitions for: ir•i•des•cent Pronunciation: (ir"i-des'unt), [key] — adj. displaying a play of lustrous colors like those of the rainbow. —n. an iridescent cloth, material, or other substance: new fall dresses of imported iridescents. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: iridescent (Thesaurus) iridescence iridescent seaweed Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language