Definition of ventricle in English:



  • 1A hollow part or cavity in an organ, in particular.

    • ‘It communicated with the left ventricle through an orifice surrounded by pearly endocardial plaque.’
    • ‘As the impulse travels down the bundles, the ventricles contract and the cycle repeats itself.’
    space, chamber, hollow, hole, pocket, pouch
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    1. 1.1Each of the two main chambers of the heart, left and right.
      • ‘After passing to the left ventricle through the mitral valve, blood goes to the aorta.’
      • ‘Blood vessels that originate from the right and left ventricles are designated as arteries and have a distinctive structure.’
      • ‘At operation, dense adhesions between the left lung and the right and left ventricle were present.’
      • ‘In chickens, the right ventricle of the heart enlarges and can't pump blood efficiently to the lungs.’
      • ‘Blood flows from the right atrium to the right ventricle through the tricuspid valve.’
    2. 1.2Each of the four connected fluid-filled cavities in the centre of the brain.
      • ‘The fourth ventricle is between the pons and cerebellum.’
      • ‘Finally, the perceived object could enter into the rear ventricle of the brain, the memory.’
      • ‘Examination of the brain revealed only enlarged lateral and third ventricles.’
      • ‘There was no definite plane between the tumor and the floor of the fourth ventricle.’
      • ‘The subarachnoid space is continuous with the cavities of the cerebral ventricles.’


Late Middle English: from Latin ventriculus, diminutive of venter belly.