/ Thesaurus / H Synonyms of hfc Find synonyms for: Noun1. hydrofluorocarbon, HFC, fluorocarbon, greenhouse gas, greenhouse emissionusage: a fluorocarbon emitted as a by-product of industrial manufacturingWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: ontiguous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language