Breadcrumb Home > Thesaurus > C Synonyms of calx Find synonyms for: Noun1. calcium oxide, quicklime, lime, calx, calcined lime, fluxing lime, unslaked lime, burnt lime, oxideusage: a white crystalline oxide used in the production of calcium hydroxideWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of calx (Dictionary) ✖ Related Content Daily Word Quiz: triumphalism Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language