/ Dictionary / Index P pneumogastric nerve: Meaning and Definition of Find definitions for: pneu'mogas'tric nerve' Pronunciation: [key] — Anat. Anat.(formerly) the vagus nerve. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pneumogastric pneumograph Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language