Definition of intestine in US English:


(also intestines)


  • 1(in vertebrates) the lower part of the alimentary canal from the end of the stomach to the anus.

    ‘the contents of the intestine’
    ‘loops of intestine’
    • ‘Bulimia can cause tears and irritation in the esophagus, stomach, and intestines.’
    • ‘It is also effective for hemorrhage of the lungs, stomach and intestines or topically for wound healing.’
    • ‘The digestive tract consists of a mouth, buccal cavity, esophagus, stomach, two-section intestine, and anus.’
    • ‘Nearly all the blood from the stomach and intestines passes through the liver.’
    • ‘Caffeine has a stimulating effect on the brain and nerves, the heart and circulatory system, the stomach and intestines.’
    • ‘Peptic ulcers are those in the stomach and the next part of the intestine, the duodenum.’
    • ‘The most familiar choice is the small intestine, the upper stretch of our intestine just below the stomach.’
    • ‘A layer of mucus lines the stomach, oesophagus and intestines to act as a barrier against this acid.’
    • ‘There is a possibility that the oesophagus, stomach or intestine may be damaged or, in rare and extreme cases, perforated during the procedure.’
    • ‘These drugs help to relieve muscle spasms in the intestines so that the stomach empties more quickly.’
    • ‘The cancer can then progress by metastasizing into the liver, kidney, pancreas, lung, stomach and intestine.’
    • ‘Around the tenth week of pregnancy, the intestine moves from the umbilical cord into the abdomen.’
    • ‘The posterior viscera were exposed and the esophagus traced through to the cecum, stomach, intestine, and rectum region.’
    • ‘If perforation occurs in the stomach or intestines, fever and abdominal pain and tenderness may develop.’
    • ‘The pouches may be noticed during a barium enema, when a liquid is inserted into the intestine through the anus and an X-ray of the abdomen is taken.’
    • ‘These symptoms result from inflammation or irritation of the stomach and intestines - the gastrointestinal tract, or gut.’
    • ‘Smooth cells make up the stomach, intestine, blood vessels and other organs.’
    • ‘The plain abdominal films show distended loops of intestine with thickened bowel walls.’
    • ‘Smooth muscles are involuntary and located inside internal organs such as the stomach and intestines.’
    • ‘Barium is inserted into the intestine through the anus (back passage) and X-rays are then taken of the abdomen.’
    gut, guts, entrails, viscera
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    1. 1.1 (especially in invertebrates) the whole alimentary canal from the mouth downward.
      • ‘In a live specimen food particles can be seen passing through the intestine which terminates at the anus located on the postabdomen.’
      intestines, entrails
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Late Middle English: from Latin intestinum, neuter of intestinus, from intus ‘within’.