Definition from Wiktionary, the free dictionary
- Rhymes: -eɪʃən
lactation (plural lactations)
- The secretion of milk from the mammary gland of a female mammal.
- The process of providing the milk to the young; breastfeeding.
- The period of time that a mother lactates to feed her young; lactation period.
Derived terms 
Related terms 
secretion of milk
process of providing milk to the young