Peritoneum meaning

pĕr'ĭ-tn-ē'əm
The serous membrane that lines the walls of the abdominal cavity and folds inward to enclose the viscera.
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The transparent serous membrane lining the abdominal cavity and reflected inward at various places to cover the visceral organs.
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The serous membrane that lines the walls of the abdominal cavity and folds inward to enclose the viscera.
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The membrane that lines the walls of the abdomen and the pelvis (called the parietal peritoneum) and encloses the abdominal and pelvic organs (called the visceral peritoneum.) The space between the two, the peritoneal cavity, fills with inflammatory cells and pus when the peritoneum becomes infected.
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(anatomy) In mammals, the serous membrane lining the cavity of the abdomen and that is folded over the viscera.
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(zoology) In animals, the membrane lining the coelom cavity.
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Origin of peritoneum

  • Middle English from Late Latin peritonaeum from Greek peritonaion from peritonaios stretched across from peritonos stretched around peri- peri- teinein to stretch ten- in Indo-European roots
    From American Heritage Dictionary of the English Language, 5th Edition
  • From Ancient Greek περί- (peri, “around") + τόνος (tonos, “stretch") + -αιος (-aios, “suffix to form an adjective").
    From Wiktionary