melanocyte stimulating hormone

melanocyte-stimulating hormone

[muh-lan-uh-sahyt-stim-yuh-ley-ting, mel-uh-nuh-]
noun Biochemistry.

Origin:
1950–55

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American Heritage
Medical Dictionary

melanocyte-stimulating hormone n.

Abbr. MSH A hormone secreted by the pituitary gland that regulates skin color in humans and other vertebrates by stimulating melanin synthesis in melanocytes and melanin granule dispersal in melanophores. Also called intermedin.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
melanocyte-stimulating hormone  
A hormone that is secreted by the pituitary gland and regulates skin color by stimulating melanin synthesis in humans and other vertebrates. Melanocyte-stimulating hormone stimulates the melanin-producing cells (called melanocytes) of mammals and the melanin-containing cells (called melanophores) of reptiles and amphibians.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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