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| per·i·to·ne·um [ pèrrət'n əm ] (plural per·i·to·ne·ums or per·i·to·ne·a [ pèrrət'n ə ]) |
noun |
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abdominal lining: a smooth transparent membrane that lines the abdomen and doubles back over the surfaces of the internal organs to form a continuous sac
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| [Mid-16th century. Via late Latin< Greek peritoneion< peritonos "stretched around" < teinein "to stretch"] |
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 per·i·to·ne·al adjective |
| per·i·to·ne·al·ly adverb |
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