- 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 ventricle
When she pulled her fingers away, she could see the thrust of his ventricle against his skin.'Are You Also With Fever?'
Dr. Abraham Verghese
February 11, 2009
In the right auricle, and ventricle, was some coagulated blood.
The right auricle and ventricle were large, and their parietes thin.
He believed that the fourth ventricle was the seat of the soul.Outlines of Greek and Roman Medicine
James Sands Elliott
The third ventricle especially has its origin in a misunderstanding.
Of these parts the ventricle is deepest in color and with thickest walls.A Guide to the Study of Fishes, Volume 1 (of 2)
David Starr Jordan
- 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
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
- 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.
- 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.