vagotomyEnglishOxford Dictionary of Englishvagotomy /veɪˈɡɒtəmi / ▸ noun (plural vagotomies) [mass noun] a surgical operation in which one or more branches of the vagus nerve are cut, typically to reduce the rate of gastric secretion (e.g. in treating peptic ulcers): some of these patients had had vagotomy in the past [count noun] a vagotomy was completed. – DERIVATIVES vagotomized (also vagotomised) adjective