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. 2018

ectothermic in Medicine

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.

ectothermic in Science

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.