[ per-i-tn-ahy-tis ]
/ ˌpɛr ɪ tnˈaɪ tɪs /

noun Pathology.

inflammation of the peritoneum, often accompanied by pain and tenderness in the abdomen, vomiting, constipation, and moderate fever.


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Origin of peritonitis

First recorded in 1770–80; periton(eum) + -itis

OTHER WORDS FROM peritonitis

per·i·to·nit·ic [per-i-tn-it-ik] /ˌpɛr ɪ tnˈɪt ɪk/, per·i·to·nit·al, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for peritonitis

British Dictionary definitions for peritonitis

/ (ˌpɛrɪtəˈnaɪtɪs) /


inflammation of the peritoneum

Derived forms of peritonitis

peritonitic (ˌpɛrɪtəˈnɪtɪk), adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for peritonitis

[ pĕr′ĭ-tn-ītĭs ]


Inflammation of the peritoneum.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for peritonitis

[ pĕr′ĭ-tn-ītĭs ]

Infection or inflammation of the peritoneal cavity, usually caused by a ruptured organ, such as the appendix, in the gastrointestinal tract.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.