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[ek-tuh-thurm] /ˈɛk təˌθɜrm/
noun, Zoology
a cold-blooded animal.
Origin of ectotherm
1940-45; ecto- + therm
Related forms
ectothermic, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for ectotherm
  • It is an ectotherm that naturally experiences an impressive range of temperatures during the course of the year.
  • The influence of the cost of growth on ectotherm metabolism.
ectotherm in Medicine

ectotherm ec·to·therm (ěk'tə-thûrm')
An organism that regulates its body temperature largely by exchanging heat with its surroundings; a poikilotherm.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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ectotherm in Science
A cold-blooded organism. Also called poikilotherm.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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