any of the compound accessory reproductive organs of female mammals that occur in pairs on the chest or ventral surface and contain milk-producing lobes with ducts that empty into an external nipple, becoming functional when young are born and secreting milk for the duration of suckling.
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
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.
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.
- Mammary line
mammary line n. A transverse line drawn between the two nipples.
[muh-mek-tuh-mee] /məˈmɛk tə mi/ noun, plural mammectomies. Surgery. 1. . mammectomy mam·mec·to·my (mā-měk’tə-mē) n. See mastectomy.
- Mammary ridge
mammary ridge n. A bandlike thickening of ectoderm in the embryo extending from just below the axilla to the inguinal region and giving rise to the mammary glands. Also called mammary fold, milk line.
[mah-mey, -mee] /mɑˈmeɪ, -ˈmi/ noun 1. a tall, tropical American tree, Mammea americana, having thick, glossy leaves and fragrant white flowers. 2. the usually round, edible fruit of this tree, having a russet-colored rind and yellow, juicy flesh. 3. . /mæˈmiː/ noun 1. a variant spelling of mamey