Breadcrumb Home > Thesaurus > I Synonyms of iridium Find synonyms for: Noun 1. iridium, Ir, atomic number 77, metallic element, metal usage: a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of iridium (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: feinschmecker Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language