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poikilothermic

American  
[poi-kuh-loh-thur-mik, poi-kil-uh-] / ˌpɔɪ kə loʊˈθɜr mɪk, pɔɪˌkɪl ə- /
Also poikilothermal

adjective

Zoology.

  1. cold-blooded (homoiothermal ).

poikilothermic British  
/ ˌpɔɪkɪləʊˈθɜːməl, ˌpɔɪkɪləʊˈθɜːmɪk /

adjective

  1. (of all animals except birds and mammals) having a body temperature that varies with the temperature of the surroundings Compare homoiothermic

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • poikilothermism noun

Etymology

Origin of poikilothermic

1880–85; < Greek poikílo ( s ) various + thermic

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.