Definition of peritoneum in English:


Line breaks: peri¦ton|eum
Pronunciation: /ˌpɛrɪtəˈniːəm

noun (plural peritoneums or peritonea /-ˈniːə/)

  • The serous membrane lining the cavity of the abdomen and covering the abdominal organs.
    More example sentences
    • The diaphragm is then bluntly dissected away from the parietal peritoneum, leaving the peritoneum behind.
    • There was no extension into the endometrial cavity, nor into the pelvic peritoneum.
    • This treatment uses the lining of the peritoneum to act as the filter.



More example sentences
  • The concern is that additional fluid would cause further distension and leakage of bowel contents into the peritoneal cavity.
  • A peritoneal dialysis catheter is placed under sterile conditions.
  • If no cells are present in this peritoneal mucous, the prognosis is excellent.


late Middle English: via late Latin from Greek peritonaion, from peritonos 'stretched round', from peri- 'around' + -tonos 'stretched'.

More definitions of peritoneum

Definition of peritoneum in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day coloratura
Pronunciation: ˌkɒlərəˈtjʊərə
elaborate ornamentation of a vocal melody