i Register
In some senses, ventricle is marked as archaic. Watch for register when choosing this word.
noun
Any small cavity within a body; a hollow part or organ, especially:
The muscular ventricles pump blood by contracting their fibers in response to electrical stimulation.
Any small cavity within a body; a hollow part or organ, especially:
the ventricle of memory
Any small cavity within a body; a hollow part or organ, especially:
[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;) […]
Any small cavity within a body; a hollow part or organ, especially: