n.
Pronunciation: ' ven-tri-k ə l
Function: noun
Etymology: Middle English, from Latin ventriculus, from diminutive of ventr-, venter belly
Date: 14th century
: a cavity of a bodily part or organ: as a : a chamber of the heart which receives blood from a corresponding atrium and from which blood is forced into the arteries ― see HEART illustration b : any of a system of communicating cavities in the brain that are continuous with the central canal of the spinal cord ― see BRAIN illustration