lateral cord of brachial plexus

n.
  1. A fasciculus formed by the anterior divisions of the superior and middle trunks, giving rise to the lateral pectoral nerve and terminating by dividing into the musculocutaneous nerve and the lateral root of the median nerve.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.