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Definition of Endotherm

Endotherm: An endotherm is a warm-blooded animal (such as homo sapiens). Another term for us warm-blooded creatures is homeotherm.

An endotherm or homeotherm is as opposed to a poikilotherm (an organism such as a frog that is cold-blooded) and a stenotherm (a creature that can only survive only within a very narrow temperature range).

Endotherm is entirely Greek (as to origin). The Greek "endo-" means "within" + "-therm" is from the Greek "therme" meaning "heat" = the heat within.

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=9613
Last Editorial Review: 6/14/2012

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