/ Thesaurus / H Synonyms of heat exchanger Find synonyms for: Noun1. heat exchanger, deviceusage: device that transfers heat from one liquid to another without allowing them to mixWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language