/ Thesaurus / B Synonyms of blue copperas Find synonyms for: Noun1. blue vitriol, blue copperas, blue stone, chalcanthite, copper sulfate, copper sulphate, cupric sulfate, cupric sulphateusage: hydrated blue crystalline form of copper sulfateWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: miscreant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language