Definition of Mammary gland

1. Premenstrual Syndrome (PMS) Slideshow Pictures
2. Disease Prevention in Women Slideshow Pictures
3. Happiness Quiz: Test Your Emotional Intelligence Quotient (EQ)

Mammary gland: One of the two half-moon-shaped glands on either side of the adult female chest, which with fatty tissue and the nipple make up the breast. Within each mammary gland is a network of sacs that produce milk during lactation and send it to the nipple via a system of ducts.

Undeveloped mammary glands are present in female children and in males.

See also Breast, Lactation.

Need help identifying pills and medications?
Use the pill finder tool on RxList.