Jisho

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Noun
1. homeothermSee also 変温動物, See also 温血動物
Wikipedia definition
2. Warm-bloodedThe term warm-blooded is a colloquial term to describe animal species which have a relatively higher blood temperature, and maintain thermal homeostasis primarily through internal metabolic processes. These are characteristics of mammals and birds. Both the terms "warm-blooded" and "cold-blooded" have fallen out of favour with scientists because of the vagueness of the terms and an increased understanding of the field. Body temperature types are not discrete categories.
Read “Warm-blooded” on English Wikipedia
Read “恒温動物” on Japanese Wikipedia
Read “Warm-blooded” on DBpedia

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