oesophagogastroduodenoscopy /ɪˌsɑ.fə.ɡoʊˌɡæ.stɹoʊˌdu.oʊ.dəˈnɑ.skə.pi/ noun1 •A medical procedure in which a endoscope is inserted through the mouth to visually examine the esophagus, stomach, and the duodenum, typically used to diagnose or sometimes treat conditions affecting the upper gastrointestinal tract. formsoesophagogastroduodenoscopies
