noun Zoology.
a cold-blooded animal.

1940–45; ecto- + therm

ectothermic, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To ectotherm
American Heritage
Medical Dictionary

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.
Cite This Source
American Heritage
Science Dictionary
ectotherm   (ěk'tə-thûrm')  Pronunciation Key 
A cold-blooded organism. Also called poikilotherm.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Example sentences
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.
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature