prolactin

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English[edit]

Etymology[edit]

From pro- (from Ancient Greek πρό (pró, before)) +‎ lact- (variation of lacto-, from Latin lac (milk)) +‎ -in (modification of -ine).

Noun[edit]

prolactin (usually uncountable, plural prolactins)

  1. (biochemistry) A peptide gonadotrophic hormone secreted by the pituitary gland; it stimulates growth of the mammary glands and lactation in females.
    • 2019, Sara Pascoe, Sex Power Money:
      Men get a dose of the hormone prolactin after orgasm and this acts as a sedative.

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