Breadcrumb Home > Thesaurus > M Synonyms of monatomic Find synonyms for: Adjective 1. monatomic, monoatomic usage: of or relating to an element consisting of a single atom; "helium and argon are monatomic gases" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of monatomic (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: tintinnabulation Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language