Breadcrumb Home > Thesaurus > C Synonyms of calcium Find synonyms for: Noun 1. calcium, Ca, atomic number 20, metallic element, metal usage: a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of calcium (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: locution Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language