homeothermy
noun
ho·meo·ther·my
| \ ˈhō-mē-ə-ˌthər-mē
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variants:
also homoiothermy \ hō-ˈmȯi-ə-
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plural homeothermies
Medical Definition of homeothermy
: the condition of being warm-blooded : warm-bloodedness
— called also homeothermism