noun
Freq #47343
Meanings
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1
noun
the double-walled membranous sac that encloses the heart and contains lubricating fluid
Inflammation caused fluid to accumulate inside the pericardium.
Thesaurus
Etymology
A learned borrowing from Greek perikardion, 'membrane around the heart,' formed from peri-, 'around,' + kardia, 'heart.' The anatomical name preserves that literal description of the enclosing sac.