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ectotherm

[ek-tuh-thurm]
noun Zoology.
  1. a cold-blooded animal.
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Origin of ectotherm

First recorded in 1940–45; ecto- + therm
Related formsec·to·ther·mic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
ectothermic in Medicine

ectothermic

(ĕk′tə-thûr′mĭk)
adj.
  1. Of or relating to an organism that regulates its body temperature largely by exchanging heat with its surrounding environment.
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ectotherm

(ĕk′tə-thûrm′)
n.
  1. An organism that regulates its body temperature largely by exchanging heat with its surroundings; a poikilotherm.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
ectothermic in Science

ectotherm

[ĕk′tə-thûrm′]
  1. A cold-blooded organism. Also called poikilotherm
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.