- Zoology. any of various hollow organs or parts in an animal body.
- 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.
- one of a series of connecting cavities of the brain.
Origin of ventricle
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for ventricles
The heart was in standstill, hazy clots filling the ventricles.Real Life Lazarus: When Patients Rise From the Dead
August 21, 2014
In these sells or ventricles are fancy, understanding, and memory.Christmas: Its Origin and Associations
William Francis Dawson
This member has three ventricles or chambers, like the brain.
Kant: The soul is located in the water contained in the ventricles.Handbook of Freethought
The ventricles of the brain are also lined by this membrane.The American Reformed Cattle Doctor
The ventricles were of a natural capacity, and did not contain any fluid.Observations on Madness and Melancholy
- 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
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
Word Origin and History for ventricles
late 14c., from Latin ventriculus "stomach," diminutive of venter (genitive ventris) "belly" (see ventral).
Online Etymology Dictionary, © 2010 Douglas Harper
- A small cavity or chamber within a body or 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.
- 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.
- Any of four fluid-filled cavities in the brain of vertebrate animals. The ventricles are filled with cerebrospinal fluid.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.