gastrointestinal
adjective/ˌɡæstrəʊɪnˈtestɪnl/, /ˌɡæstrəʊɪnteˈstaɪnl/
/ˌɡæstrəʊɪnˈtestɪnl/
(medical)- of or related to the stomach and intestines
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gastrointestinal
Definition of gastrointestinal adjective from the Oxford Advanced Learner's Dictionary