Medical Dictionary
2 ENTRIES FOUND:

letdown

noun \ˈlet-ˌdan\

Medical Definition of LETDOWN

:  a physiological response of a lactating mammal to suckling and allied stimuli whereby increased intramammary pressure forces previously secreted milk from the acini and finer tubules into the main collecting ducts from where it can be drawn through the nipple
April 27, 2015
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