noun
also glossopharyngeal
: a mixed nerve that is either of the 9th pair of cranial nerves, that has sensory fibers arising from the superior and petrosal ganglia and motor fibers arising with those of the 10th nerve from the lateral wall of the medulla, and that supplies chiefly the pharynx, posterior tongue, and parotid gland with motor and sensory fibers including gustatory and autonomic secretory and vasodilator fibers