auditory nerve definition ear
: either of the eighth pair of cranial nerves connecting the inner ear with the brain, transmitting impulses concerned with hearing and balance, and composed of the cochlear nerve and the vestibular nerveâcalled also acoustic nerve, auditory, eighth cranial nerve, vestibulocochlear nerve.efinition of AUDITORY NERVE. : either of the eighth pair of cranial nerves connecting the inner ear with the brain and transmitting impulses concerned with hearing and balance â see ear illustration. See auditory nerve defined for kids. ADVERTISEMENT. noun.