/ Dictionary / Index I iridosmine: Meaning and Definition of Find definitions for: ir•i•dos•mine Pronunciation: (ir"i-doz'min, -dos'-, ī"ri-), [key] — n. a native alloy of iridium and osmium, usually containing some rhodium, ruthenium, platinum, etc., used esp. for the points of gold pens. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: iridosmine (Thesaurus) iridopupillary iridotomy 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