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American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
melanocyte-stimulating hormone: a pituitary gland hormone that causes darkening of the skin by increasing the production of melanin.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||MSH - a hormone secreted by the anterior pituitary gland that controls the degree of pigmentation in melanocytes|
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