peritoneal

American  

[per-i-tuhn-ee-uhl] / ˌpɛr ɪ tənˈi əl /

adjective

Anatomy.

1. relating to, by means of, or enclosed by the peritoneum, the membrane lining the abdominal cavity.

   Perforation of the ulcer may occur, with escape of stomach contents into the peritoneal cavity.

   In peritoneal dialysis, the lining of the abdominal cavity acts like the external filter to cleanse the blood.

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Other Word Forms

• preperitoneal
  adjective
• subperitoneal
  adjective
• transperitoneal
  adjective
• peritoneally
  adverb
• transperitoneally
  adverb

Etymology

Origin of peritoneal

peritone(um) ( def. ) + -al ¹ ( def. )

Example Sentences

See Examples For:

peritoneal

Doctors determined she was suffering from kidney failure and needed ongoing treatment including chemotherapy and peritoneal dialysis.

From Los Angeles Times ● Jan. 6, 2026

As a BRCA1 previvor, my risk for breast, ovarian, pancreatic, peritoneal, fallopian tube and endometrial cancer is higher than normal.

From Salon ● Oct. 17, 2024

Laura-Jane Seaman, 36, died at Broomfield Hospital, Chelmsford, Essex, on 23 December 2022 following a significant peritoneal haemorrhage.

From BBC ● Aug. 12, 2024

Deep endometriosis, extending to any depth beneath the peritoneal surface, is the most severe form of endometriosis.

From Science Daily ● Apr. 9, 2024

Diseases of the Pelvic Peritoneum and Connective Tissue.—Women are excessively liable to peritoneal infections.

From Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 7 "Gyantse" to "Hallel" by Various