short radial extensor muscle of wrist

n.
  1. A muscle with origin from the lateral epicondyle of the humerus, with insertion to the base of the third metacarpal bone, with nerve supply from the radial nerve, and whose action extends and abducts the wrist toward the radius.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.