definition of mammary gland
Mammary gland. The mammary gland is a gland located in the breasts of females that is responsible for lactation, or the production of milk.Both males and females have glandular tissue within the breasts; however, in females the glandular tissue begins to develop after puberty in response to estrogen release.he mammary gland is a gland located in the breasts of females that is responsible for lactation, or the production of milk. Both males and females have glandular tissue within the breasts; however, in females the glandular tissue begins to develop after puberty in response to estrogen release.
noun. The milk-producing gland of women or other female mammals. Example sentences. 1  Some mutations involving the hair are accompanied by defects of the skin and its appendages, such as nails, teeth, sebaceous glands, and mammary glands.oun. The milk-producing gland of women or other female mammals. Example sentences. 1  Some mutations involving the hair are accompanied by defects of the skin and its appendages, such as nails, teeth, sebaceous glands, and mammary glands.