The Collaborative International Dictionary of English v.0.48:
Vagal \Va"gal\, a. [See Vagus.] (Anat.) Of or pertaining to the vagus, or pneumogastric nerves; pneumogastric. [1913 Webster]WordNet (r) 3.0 (2006):
vagal adj 1: of or relating to the vagus nerve [syn: vagal, pneumogastric]