胃い腸ちょう病びょう学がくMeaningsNoun1. gastroenterologyKanji used胃stomach腸intestines病illness学studyComposed of胃い腸ちょうstomach and intestines; gastrointestinal tract; digestive organsNoun病びょうdiseaseSuffix学がくlearning; scholarship; study; erudition; knowledge; education; study of ...; -ology; -icsNoun