ventricle

/ˈvɛntrɪkəl/
noun
  1. Either of the two lower chambers of the heart that pump blood out to the body or lungs.
    • The left ventricle is responsible for pumping oxygen-rich blood to the entire body.
    • Doctors monitored the patient's ventricle function after the heart attack.
    • A healthy ventricle contracts strongly to push blood through the arteries.
  2. Any of the four fluid-filled cavities in the brain.
    • The scan showed that the ventricles were normal in size.
    • Cerebrospinal fluid flows through the ventricles of the brain.
    • An infection in the brain's ventricle can cause serious health problems.