chalone

[ kal-ohn ]
/ ˈkæl oʊn /

noun Physiology.

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

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

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.