Definition of flatus in English:



mass nountechnical
  • Gas in or from the stomach or intestines, produced by swallowing air or by bacterial fermentation.

    • ‘The bacterial activity also produces the C02 associated with increased flatus.’
    • ‘Her abdomen was soft with normal, active bowel sounds, and she was passing flatus.’
    • ‘Failure to pass flatus or feces suggests intestinal obstruction.’
    • ‘On the first postoperative day, the patient was able to pass flatus and tolerate a regular diet.’
    • ‘However, fever, nausea, increased flatus and chronic diarrhea with malabsorption may occur.’
    intestinal gas, wind, gas
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Mid 17th century: from Latin, literally ‘blowing’, from flare ‘to blow’.