A person who practices gastrology, studying and understanding the stomach and digestive system.
From gastro- (Greek gaster, 'stomach') + -loger (Greek -logos, 'one who studies'). An older term for what we now call a gastroenterologist.
This is an archaic term that shows how medical terminology evolved—what 19th-century doctors called a 'gastrologer' is exactly what a modern gastroenterologist does!
Complete word intelligence in one call. Free tier — 50 lookups/day.