[ kal-ohn ]
/ ˈkæl oʊn /
an endocrine secretion that depresses or inhibits physiological activity.
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. 2019
British Dictionary definitions for chalone
/ (ˈkæləʊn) /
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
Medicine definitions for chalone
[ kā′lōn′, kăl′ōn′ ]
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.