1. peritoneum

noun. a transparent membrane that lines the abdominal cavity in mammals and covers most of the viscera.


  • serosa
  • serous membrane
  • omentum

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Sentences with peritoneum

1. Noun, singular or mass
If the discomfort increases, or you start to feel pain, the tissue, organ or intestine that is causing the protrusion may be caught in the hole in the peritoneum.