(hī'drō-nū'mō-per'i-kar'dē-ŭm), The presence of a serous effusion and of gas in the pericardial sac. Synonym(s): pneumohydropericardium [hydro- + G. pneuma, air, + pericardium]
hy·dro·pneu·mo·per·i·car·di·um
(hī'drō-nū'mō-per'i-kahr'dē-ŭm) The presence of a serous effusion and of gas in the pericardial sac. Synonym(s): pneumohydropericardium. [hydro- + G. pneuma, air, + pericardium]