• The smooth serous membrane which lines the cavity of theabdomen, or the whole body cavity when there is no diaphragm, and,turning back, surrounds the viscera, forming a closed, or nearlyclosed, sac. [Written also peritonæum.]


    Peritoneum meaning & definition 1 of Peritoneum.


  • The serous membrane lining the cavity of the abdomen and covering the abdominal organs.

    Peritoneum meaning & definition 2 of Peritoneum.

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