either one of the third pair of cranial nerves, consisting chiefly of motor fibers that innervate most of the muscles of the eyeball.
Origin of oculomotor nerve
First recorded in 1880–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
the third cranial nerve, which supplies most of the eye muscles
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
A nerve originating in the midbrain below the cerebral aqueduct, supplying all the extrinsic muscles of the eye except the lateral rectus and the superior oblique muscles, and supplying the elevator muscle of the upper eyelid, the ciliary muscle, and the sphincter muscle of the pupil.third cranial nerve
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.