pericardial fluid
nounUK /ˌperɪˈkɑːdiəl ˈfluːɪd/
US /ˌperɪˈkɑːrdiəl ˈfluːɪd/
The watery liquid that keeps your heart slippery and safe inside its sac.
The doctor said the pericardial fluid around his heart looked normal.
RELATED WORDS
OTHER MEANINGS
2. Fluid that builds up abnormally around the heart, called a pericardial effusion.
An ultrasound showed a small pericardial fluid collection.
3. A sample of this fluid taken with a needle for testing.
The lab analyzed the pericardial fluid for signs of infection.
4. The thin layer of moisture between the two sheets of the pericardium.
Friction is reduced by the pericardial fluid between the membranes.