lateral rectus muscle

n.
  1. A muscle with origin from the lateral part of the tendinous ring bridging the superior orbital fissure, with insertion into the sclera of the eye, with nerve supply from the abducens nerve, and whose action directs the pupil laterally.rectus lateralis
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.