A cow or other animal yielding milk or kept for milking, esp. one of a specified productivity. Cf. milcher, n.

An animal of the vertebrate class Mammalia, the members of which are characterized by having mammary glands that secrete milk to feed the young.

= mammal, n.; a member of the class Mammalia, at one time called Mammifera.

One of the Mammalia; a mammal.

An animal that suckles its young; a mammal. Also, with epithet, an animal that suckles its young in a specified manner. rare.