Breadcrumb Home > Thesaurus > P Synonyms of platinum Find synonyms for: Noun 1. platinum, Pt, atomic number 78, noble metal usage: a heavy precious metallic element; grey-white and resistant to corroding; occurs in some nickel and copper ores and is also found native in some deposits WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of platinum (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: chimera Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language