Inflammation of the peritoneum with an accumulation of gas in the peritoneal cavity. ... Origin: G. Pneuma, air, + peritonitis ... (05 Mar 2000) ... 
(noo″mo-per″ĭ-to-ni´tis) peritonitis with accumulation of air or gas in the peritoneal cavity.
Type: Term Pronunciation: nū′mō-per′i-tō-nī′tis Definitions: 1. Inflammation of the peritoneum with an accumulation of gas in the peritoneal cavity.
pneumoperitonitis Peritonitis with the presence of air or gas in the peritoneal cavity.