pyopneumopericardium

[ pī′ō-nōō′mō-pĕr′ĭ-kärdē-əm ]

n.

The presence of pus and gas in the pericardial sac.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.