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[ven-tri-kuh l] /ˈvɛn trɪ kəl/
Zoology. any of various hollow organs or parts in an animal body.
  1. either of the two lower chambers on each side of the heart that receive blood from the atria and in turn force it into the arteries.
  2. one of a series of connecting cavities of the brain.
Origin of ventricle
1350-1400; Middle English < Latin ventriculus belly, ventricle. See venter, -i-, -cle1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for ventricle
  • Doc notices the prewar mitral valve and the good old right ventricle.
  • And it in effect takes blood from the ventricle chamber of your heart and moves it into your aorta.
  • Due to pressure overload size of the heart increases known as hypertrophy of left ventricle.
  • Blood that circulates throughout the body is pumped from the left ventricle of the heart.
  • Its job is to let blood from the heart's left atrium flow into the left ventricle--without letting any leak back into the atrium.
  • Clots can break off and eventually end up wedged in the vessels of the lungs, corking blood flow out of the right ventricle.
  • The descending blood goes through the right ventricle to the lungs, where the pressure needs to be low.
  • Turned out to be so wrong about their heart that you couldn't piece together a decent ventricle among them.
  • The inferior surface is concave, and forms on either side of the middle line the roof of the lateral ventricle.
  • It is attached to the roof of the third ventricle near its junction with the mid-brain.
British Dictionary definitions for ventricle


noun (anatomy)
a chamber of the heart, having thick muscular walls, that receives blood from the atrium and pumps it to the arteries
any one of the four main cavities of the vertebrate brain, which contain cerebrospinal fluid
any of various other small cavities in the body
Word Origin
C14: from Latin ventriculus, diminutive of venter belly
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for ventricle

late 14c., from Latin ventriculus "stomach," diminutive of venter (genitive ventris) "belly" (see ventral).

Online Etymology Dictionary, © 2010 Douglas Harper
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ventricle in Medicine

ventricle ven·tri·cle (věn'trĭ-kəl)
A small cavity or chamber within a body or an organ, especially the right or left ventricle of the heart or any of the interconnecting ventricles of the brain.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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ventricle in Science
  1. A chamber of the heart that receives blood from one or more atria and pumps it by muscular contraction into the arteries. Mammals, birds, and reptiles have two ventricles; amphibians and fish have one.

  2. Any of four fluid-filled cavities in the brain of vertebrate animals. The ventricles are filled with cerebrospinal fluid.

ventricular adjective (věn-trĭk'yə-lər)
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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