定てい温おん動どう物ぶつ

て

い

お

ん

ど

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ぶ

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Meanings

1

noun

homeotherm; warm-blooded animal

A biological term for an animal that maintains a constant body temperature regardless of the environment. The more common everyday term is 恒温動物 (こうおんどうぶつ).

哺ほ乳にゅう類るいと鳥ちょう類るいは定てい温おん動どう物ぶつに分ぶん類るいされる。
Mammals and birds are classified as homeotherms.

定

determine, fix, establish

温warm

動move, motion, change

物thing, object, matter

Similar words

恒こう温おん動どう物ぶつ
More common synonym for 'warm-blooded animal'. 定温動物 is less frequent but carries the same meaning.
変へん温おん動どう物ぶつ
Antonym: 'cold-blooded animal' or 'poikilotherm', whose body temperature varies with the environment.

Etymology

Compound of 定 (constant) + 温 (temperature) + 動物 (animal). A straightforward kanji-based term.