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chalone

[kal-ohn] /ˈkæl oʊn/
noun, Physiology
1.
an endocrine secretion that depresses or inhibits physiological activity.
Origin
1910-1915
1910-15; < Greek chalôn, present participle of chalân to slacken, loosen; on the model of hormone
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for chalone

chalone

/ˈkæləʊn/
noun
1.
any internal secretion that inhibits a physiological process or function
Word Origin
C20: from Greek khalōn, from khalan to slacken
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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chalone in Medicine

chalone cha·lone (kā'lōn', kāl'ōn')
n.

  1. A hormone that inhibits rather than stimulates.

  2. 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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