nounplural noun peritoneums, plural noun peritonea/-ˈnēə/Anatomy
The serous membrane lining the cavity of the abdomen and covering the abdominal organs.‘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.’
- ‘This vascular and nervous unit is contained in a band or fold of the peritoneum that is called the suspensory ligament of the ovary.’
- ‘Only 1 case has shown anterior extension to the bladder peritoneum.’
Late Middle English via late Latin from Greek peritonaion, from peritonos ‘stretched round’, from peri- ‘around’ + -tonos ‘stretched’.
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