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pericardium (plural pericardia)
- (anatomy, cardiology) A serous membrane that surrounds the heart allowing it to contract.
- 1685, Samuel Collins, “Of the Diseases of the Pericardium, and their Cures”, in The Second Volume, containing The Parts of the Middle and Highest Apartiment of Man's Body (And other Animals):
- The Pericardium is sometimes swelled, as overcharged with too great a quantity of Serous Liquor, making a kind of Dropsie […]
serous membrane that surrounds the heart