Home › Words › P › pneumoperitoneumpneumoperitoneumpneumoperitoneum means the presence of air or gas in the peritoneal cavity.Among words judged in Lexicurio's Arena, pneumoperitoneum ranks #26,744 of 42,752 for Qualifying.EtymologyFrom pneumo- + peritoneum.nounThe presence of air or gas in the peritoneal cavity.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.capnoperitoneum 72% match — The presence of pressurised carbon dioxide in the peritoneum vs pneumoperitoneum →pneumatosis 71% match — The abnormal accumulation of air or other gas in the body. vs pneumoperitoneum →pyoperitoneum 68% match — An accumulation of pus in the peritoneal cavity. vs pneumoperitoneum →pneumothorax 68% match — Presence of air inside the pleural cavity, usually caused by injury either to the lung or the chest wall. vs pneumoperitoneum →uroperitoneum 68% match — The presence of urine in the peritoneal cavity vs pneumoperitoneum →choleperitoneum 66% match — The presence of bile within the peritoneal cavity. vs pneumoperitoneum →pyopneumothorax 65% match — The accumulation of air (or other gas) and pus in the pleural cavity. vs pneumoperitoneum →pneumobilia 62% match — The presence of gas in the biliary system, typically found in patients that have recently undergone biliary surgery or endoscopic biliary procedure. vs pneumoperitoneum →