/ Dictionary / Index I irido-: Meaning and Definition of Find definitions for: irido- Pronunciation: [key] a combining form of Latin origin used, with the meanings “rainbow,” “iridescent,” “iris (of the eye),” “Iris (the genus),” and “iridium,” in the formation of compound words: iridopupillary; iridosmine; iridotomy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. iridize iridocapsulitis Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language