poikilothermal

US:USA pronunciation: respellingUSA pronunciation: respelling(poi′kə lō thûr′məl, poi kil′ə-)


WordReference Random House Unabridged Dictionary of American English © 2026
poi•ki•lo•ther•mal  (poi′kə lō thûr′məl, poi kil′ə-),USA pronunciation adj. [Zool.]
  1. Zoologycold-blooded (def. 3) (opposed to homoiothermal).
  • Greek poikílo(s) various + thermal
  • 1880–85
poi′ki•lo•ther′mism, poi′ki•lo•ther′my, n. 

Collins Concise English Dictionary © HarperCollins Publishers::
poikilothermic /ˌpɔɪkɪləʊˈθɜːmɪk/, poikilothermal /ˌpɔɪkɪləʊˈθɜːməl/ adj
  1. (of all animals except birds and mammals) having a body temperature that varies with the temperature of the surroundings
    Compare homoiothermic
Etymology: 19th Century: from Greek poikilos various + thermal
'poikilothermal' also found in these entries (note: many are not synonyms or translations):
poikilothermic - cold-blooded - hematocryal - homoiothermal

Forum discussions with the word(s) "poikilothermal" in the title:


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