per·i·to·ne·um also per·i·to·nae·um (p r  -tn-   m)n. pl. per·i·to·ne·a also per·i·to·nae·a (-tn- ) The serous membrane that lines the walls of the abdominal cavity and folds inward to enclose the viscera. [Middle English, from Late Latin peritonaeum, from Greek peritonaion, from peritonaios, stretched across, from peritonos, stretched around : peri-, peri- + teinein, to stretch; see ten- in Indo-European roots.] per i·to·neal adj.per i·to·neal·ly adv. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Adj. | 1. | peritoneal - of or relating to or affecting the peritoneum; "peritoneal cancer" |
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