adjective. of or relating to the vagus nerve.
1. Noun, singular or mass Therefore, if a dog has a high vagal tone, he has a reduced heart rate. 2. Adjective With so many connections to different places, damage to or sickness of the vagal nerve can result in problems in one or several organs. 3. Verb, base form Alcoholism has also been found to contribute to vagal nerve neuropathy.