- any of various hollow organs or parts in an animal body.
- Anatomy.
- 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.
- 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
