/ Thesaurus / C Synonyms of copper oxide Find synonyms for: Noun1. copper oxide, oxideusage: an oxide of copperWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: fresco Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language