Lactation

n. production of milk, secretion of milk; period of time during which a mother produces milk

Lactation describes the secretion of milk from the mammary glands, the process of providing that milk to the young, and the period of time that a mother lactates to feed her young. The process occurs in all female mammals, and in humans it is commonly referred to as breastfeeding or nursing. In most species milk comes out of the mother's nipples; however, the platypus (a non-placental mammal) releases milk through ducts in its abdomen. In only one species of mammal, the Dayak fruit bat, is milk production a normal male function. In some other mammals, the male may produce milk as the result of a hormone imbalance. This phenomenon may also be observed in newborn infants as well (for instance witch's milk).
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Lactation is the medical term for yielding of milk by the mammary glands which leads to breastfeeding. [more]Lactation - Community and Resources

Noun
1. the period following birth during which milk is secreted; "lactation normally continues until weaning"
(hypernym) time period, period of time, period
(derivation) breastfeed, bottle-feed, suckle, suck, nurse, wet-nurse, lactate, give suck
2. the production and secretion of milk by the mammary glands
(hypernym) bodily process, body process, bodily function, activity
(derivation) breastfeed, bottle-feed, suckle, suck, nurse, wet-nurse, lactate, give suck
3. feeding an infant by giving suck at the breast
(synonym) suckling
(hypernym) feeding, alimentation
(derivation) breastfeed, bottle-feed, suckle, suck, nurse, wet-nurse, lactate, give suck

n. lactation, production of milk, secretion of milk; period of time during which a mother produces milk