哺乳動物
Mammal \Mam"mal\, n.; pl. {Mammals}. [L. mammalis belonging to the breast, fr. mamma the breast or pap: cf. F. mammal.] (Zo["o]l.) One of the Mammalia. {Age of mammals}. See under {Age}, n., 8.
mammal n : any warm-blooded vertebrate having the skin more or less covered with hair; young are born alive except for the small subclass of monotremes and nourished with milk