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definitions

ectotherm

[ek-tuh-thurm]

noun Zoology.

a cold-blooded animal.

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. 2019
Medicine definitions for ectothermic

ectothermic

[ĕk′tə-thûr′mĭk]

adj.

Of or relating to an organism that regulates its body temperature largely by exchanging heat with its surrounding environment.

ectotherm

[ĕk′tə-thûrm′]

n.

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.
Science definitions for ectothermic

ectotherm

[ĕk′tə-thûrm′]

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