noun
homeotherm; warm-blooded animal
Biological term for animals that maintain a constant body temperature, such as mammals and birds. Often contrasted with 変温動物 (poikilotherm).
哺乳類と鳥類は恒温動物です。
Mammals and birds are homeotherms.
恒温動物は気温が変化しても体温を一定に保つ。
Homeotherms keep their body temperature constant even when the air temperature changes.