a. Anat. and Path. [f. VAG-US + -AL.] a. Vagal nerve, the vagus or pneumogastric nerve. b. Of, pertaining to, or affecting this.
1854. Orrs Circ. Sci., Org. Nat., I. 205. The exoccipitals are perforated to give exit to the vagal and hypoglossal nerves.
1885. McWilliam, in Jrnl. Physiol., VI. 223. The effects of vagal stimulation were frequently investigated.
1899. Allbutts Syst. Med., VI. 816. The upper vagal roots are more concerned in inspiration than the lower ones.