hydropericardium

[hī′drō-pĕr′ĭ-kärdē-əm]

n.

The noninflammatory accumulation of watery fluid in the pericardial cavity.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.