/ Dictionary / Index I Iridum: Meaning and Definition of Find definitions for: Ir•i•dum Pronunciation: (ir'i-dum), [key] See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. iridous Irina Related Content Daily Word Quiz: supine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language