endotherm

noun
en·do·therm | \ ˈen-dō-ˌthərm \

Definition of endotherm 

: a warm-blooded animal

First Known Use of endotherm

1940, in the meaning defined above

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The first known use of endotherm was in 1940

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endotherm

noun
en·do·therm | \ ˈen-də-ˌthərm \

Medical Definition of endotherm 

: a warm-blooded animal

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