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Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: Of or relating to the viscera and the abdomen; (often specifically) of or relating to the gastrointestinal viscera (stomach, bowels, etc) and the abdominal cavity, and their relationship to each other, especially in cases of abnormal mismatch in development. Full definition →
Etymology from Wiktionary, CC BY-SA 4.0.