/ Thesaurus / P Synonyms of poikilothermous Find synonyms for: Adjective1. poikilothermic, poikilothermous, heterothermic, ectothermic, cold-blooded (vs. warm-blooded)usage: of animals except birds and mammals; having body temperature that varies with the environmentWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: reticent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language