From French ventricule, from Latin ventriculus (belly, stomach, ventricle), diminutive of venter (belly, stomach, womb).


  • enPR: vĕnʹtrĭ-kəl, IPA(key): /ˈvɛntɹɪkəl/
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ventricle (plural ventricles)

  1. (anatomy, zoology) Any small cavity within a body; a hollow part or organ, especially:
    1. (anatomy) One of two lower chambers of the heart.
      • 2018, Sandeep Jauhar, Heart: a History, →ISBN, page 47:
        The muscular ventricles pump blood by contracting their fibers in response to electrical stimulation.
    2. (neuroanatomy, anatomy) One of four cavities in the brain.
    3. (archaic, anatomy, zoology) The stomach.
      • 1662, Henry More, An Antidote Against Atheism, Book II, A Collection of Several Philosophical Writings of Dr. Henry More, p. 72:
        [On birds] "Where omitting the more general Properties, of having two Ventricles, and picking up stones to conveigh them into their second Ventricle, the Gizzern, (which provision and instinct is a supply for the want of teeth;) [] "
    4. (archaic) The womb.

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