supinator

[ soo-puh-ney-ter ]
/ ˈsu pəˌneɪ tər /
|

noun Anatomy.

a muscle used in supination.

Origin of supinator

From New Latin, dating back to 1605–15; see origin at supinate, -tor
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for supinator

supinator

/ (ˈsuːpɪˌneɪtə, ˈsjuː-) /

noun

anatomy the muscle of the forearm that can produce the motion of supination
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