| an anterior pituitary polypeptide hormone that stimulates lactation by the mammary glands at parturition in mammals, the activity of the crop in birds, and in some mammalian species the production of progesterone by the corpus luteum. |
luteotropin lu·te·o·tro·pin (l&oomacr;'tē-ə-trō'pĭn)
n.
See prolactin.
prolactin pro·lac·tin (prō-lāk'tĭn)
n.
Abbr. PRL A pituitary hormone that stimulates and maintains the secretion of milk. Also called lactogenic hormone, lactotropin, luteotropic hormone, luteotropin.
| prolactin (prō-lāk'tĭn) Pronunciation Key
A protein hormone secreted by the anterior portion of the pituitary gland that stimulates and maintains the secretion of milk in mammals. |