ventricle
ven.tri.cle \'ven-tri-k*l\ n [ME, fr. L ventriculus, fr. dim. of ventr-, venter belly] : a cavity of a bodily part or organ : as : a chamber of the heart which receives blood from a corresponding atrium and from which blood is forced into the arteries : one of the system of communicating cavities in the brain that are conti nuous with the central canal of the spinal cord