Relating to the stomach and intestines. SYN: gastroenteric.
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gas·tro·in·tes·ti·nal .gas-trō-in-'tes-tən-əl, -'tes(t)-nəl adj of, relating to, or affecting both stomach and intestine <\gastrointestinal distress>
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gas·tro·in·tes·ti·nal (gas″tro-in-tesґtĭ-nəl) [gastro- + intestinal] pertaining to or communicating with the stomach and intestine. Called also enterogastric and gastroenteric.Medical dictionary. 2011.