from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A pituitary hormone that stimulates and maintains the secretion of milk.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun biochemistry A peptide gonadotrophic hormone secreted by the pituitary gland; it stimulates growth of the mammary glands and lactation in females

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun gonadotropic hormone secreted by the anterior pituitary; in females it stimulates growth of the mammary glands and lactation after parturition


Sorry, no etymologies found.


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  • The mystery of why multiple sclerosis (MS) tends to go into remission while women are pregnant may be the secret to overcoming the devastating neurodegenerative disease, according to University of Calgary researchers who have shown that the pregnancy-related hormone prolactin is responsible for rebuilding the protective coating around nerve cells.

    February 20th, 2007 2007

  • Studies have also shown that men deficient in prolactin have faster recovery times.

    Why do Men Fall Asleep After Sex? | Impact Lab 2006

  • The release of prolactin is linked to the feeling of sexual satisfaction, and it also mediates the “recovery time” that men are well aware of — the time a guy must wait before “giving it another go.”

    Why do Men Fall Asleep After Sex? | Impact Lab 2006

  • It accomplishes this by interfering with the hormone dopamine, which increases the production of a hormone called prolactin in the pituitary gland, which in turn increases the production of breast milk.

    eHow - Health How To's 2010

  • Boys and girls have the same level of the hormone called prolactin until they're

    Kottu 2010

  • INVEGA® SUSTENNA (TM) and similar medicines can raise the blood levels of a hormone called prolactin and blood levels of prolactin remain high with continued use. Featured News and Stories 2009

  • Ms. Storey and Ms. Wynne-Edwards homed in on a hormone called prolactin.

    The Plight of the Pregnant Man Jena Pincott 2011

  • Turns out there's this hormone in pregnant women called prolactin (ph) that can repair the damage that's done to the brain and the spinal cord in people who have multiple sclerosis.

    CNN Transcript Feb 21, 2007 2007

  • The first hormone (called prolactin) stimulates the breast to make milk.

    Chapter 24 1997

  • The technique will help scientists track the production of the hormone prolactin, which is crucial in ensuring supplies of breast milk in nursing mothers but can be overproduced by some pituitary tumours, causing infertility. - latest science and technology news stories 2009


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