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pro·lac·tin (PRL),(prō-lak'tin), [MIM*176760]
A protein hormone of the anterior lobe of the hypophysis that stimulates the secretion of milk and possibly, during pregnancy, breast growth.
Synonym(s): galactopoietic hormone, lactation hormone, lactogenic hormone, lactotropin, mammotropic factor, mammotropic hormone
[pro- + L. lac, lact-, milk, + -in]