ventricle
heart chamber
[C] Countable
pl: ventricles
This term carries a clinical, anatomical precision. It evokes the image of a muscular pump or a fluid-filled reservoir. In a medical context, it is used to describe the structural architecture of the heart or the cerebrospinal fluid spaces in the brain.
Because of its technical nature, the word is rarely used in casual conversation unless discussing health or biology. It suggests a functional necessity, where the shape of the cavity is critical to the movement of fluids.
Used to count the specific chambers within an organ, such as the two ventricles of the heart or the four ventricles of the brain.