pyopneumopericardium
noun
pyo·pneu·mo·peri·car·di·um
| \ ˌpī-ə-ˌn(y)ü-mō-ˌper-ə-ˈkär-dē-əm
\
\
Medical Definition of pyopneumopericardium
: the presence of pus and air in the pericardium
— called also pneumopyopericardium