oculomotor nerve(redirected from CN III)
Also found in: Thesaurus, Medical, Encyclopedia.
Either of the third pair of cranial nerves, which originate in the midbrain and control most of the muscles that move the eyeballs.
(Anatomy) the third cranial nerve, which supplies most of the eye muscles
either one of the third pair of cranial nerves, which innervate most of the muscles of the eyeball.