a polypeptide synthesized by cells of the adenohypophysis which promotes fat mobilization and skin darkening by stimulation of melanocytes. It is the precursor molecule of β-endorphin and a melanocyte-stimulating hormone (β-MSH).
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.