Breadcrumb Home > Thesaurus > R Synonyms of ruthenium Find synonyms for: Noun 1. ruthenium, Ru, atomic number 44, metallic element, metal usage: a rare polyvalent metallic element of the platinum group; it is found associated with platinum WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of ruthenium (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: preternatural Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language