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Any of several polypeptides that cause the reversible inhibition of mitosis in the cells that secrete them.
[From Greek khalōn, present participle of khalān, to slacken.]
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.
(Physiology) any internal secretion that inhibits a physiological process or function
[C20: from Greek khalōn, from khalan to slacken]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
an endocrine secretion that depresses or inhibits physiological activity.
[1910–15; < Greek chalôn, present participle of chalân to slacken, loosen; on the model of hormone]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.