Breadcrumb Home > Thesaurus > G Synonyms of gastroscopy Find synonyms for: Noun1. gastroscopy, endoscopyusage: visual examination of the stomach by means of a gastroscope inserted through the esophagusWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of gastroscopy (Dictionary) ✖ Related Content Daily Word Quiz: hortatory Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language