• synonyms


[proh-ney-ter, proh-ney-]
  1. Anatomy, Zoology. any of several muscles that permit pronation of the hand, forelimb, or foot.
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Origin of pronator

First recorded in 1720–30; pronate + -or2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for pronator

Historical Examples

  • He differs from man in the figure of the deltoides, pronator, radi teres, et extensor pollicis brevii.

    Buffon's Natural History. Volume IX (of 10)

    Georges Louis Leclerc de Buffon

  • Here the artery lies in the interval between the supinator longus and the pronator radii teres.

British Dictionary definitions for pronator


  1. any muscle whose contractions produce or affect pronation
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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

pronator in Medicine


  1. A muscle that effects or assists in pronation.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.