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chalone

[ kal-ohn ]
/ ˈkæl oʊn /
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noun Physiology.
an endocrine secretion that depresses or inhibits physiological activity.
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Origin of chalone

1910–15; <Greek chalôn, present participle of chalân to slacken, loosen; on the model of hormone
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for chalone

chalone
/ (ˈkæləʊn) /

noun
any internal secretion that inhibits a physiological process or function

Word Origin for chalone

C20: from Greek khalōn, from khalan to slacken
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for chalone

chalone
[ kālōn′, kălōn′ ]

n.
A hormone that inhibits rather than stimulates.
Any of several polypeptides produced by a tissue and causing the reversible inhibition of mitosis in cells of that tissue.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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