Source : WordNet®

vagus
     n : a mixed nerve that supplies the pharynx and larynx and lungs
         and heart and esophagus and stomach and most of the
         abdominal viscera [syn: {vagus nerve}, {nervus vagus}, {pneumogastric},
          {pneumogastric nerve}, {tenth cranial nerve}, {wandering
         nerve}]
     [also: {vagi} (pl)]

vagi
     See {vagus}