peritoneal cavity peritoneal • peritonealgia · · · Info · Definitions · Synonyms · Characters · · peritoneal cavity · · Text Common · · Latin · · Scripts 17 · · Length 7 · · Syllables Definitions · · · (noun) the interior of the peritoneum; a potential space between layers of the peritoneum. Synonyms: peritoneal cavity, greater peritoneal sac. · · Noun Definition 1 Synonyms · · · greater peritoneal sac · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 t latin small letter t U+0074 v latin small letter v U+0076 y latin small letter y U+0079