|any of the milk-producing glands in mammals. In higher mammals each gland consists of a network of tubes and cavities connected to the exterior by a nipple|
|a small cavity in the epidermis and corium of the skin, from which a hair develops|
|A pigment-producing cell in the skin, hair and eye that determines their color|
mammary gland n.
Any of the milk-producing apocrine glands typically occurring in pairs in female mammals and consisting of lobes containing clusters of alveoli with a system of ducts to convey the milk to an external nipple or teat.
|mammary gland (mām'ə-rē) Pronunciation Key
One of the glands in female mammals that produces milk. It is present but undeveloped in the male. In most animals, the gland opens onto the surface by means of a nipple or teat. Mammary glands number from 2 to 20, depending on the species.