hydropneumoperitoneum

[ hī′drō-nōō′mō-pĕr′ĭ-tn-ēəm ]

n.

The accumulation of serous fluid and gas in the peritoneal cavity.pneumohydroperitoneum
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.