Meaning of vagotonia

va•go•to•ni•a

Pronunciation: (vā"gu-tō'nē-u), [key]
— n. Pathol.
  1. hyperexcitability of the vagus nerve, producing bradycardia, decreased heart output, and faintness.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.