medical definition lateral
Medical Definition of LATERAL VENTRICLE. : an internal cavity in each cerebral hemisphere that consists of a central body and three cornua including an anterior one curving forward and outward, a posterior one curving backward, and an inferior one curving downwardâsee anterior horn 2, inferior horn, posterior horn 2.edical Definition of LATERAL VENTRICLE. : an internal cavity in each cerebral hemisphere that consists of a central body and three cornua including an anterior one curving forward and outward, a posterior one curving backward, and an inferior one curving downwardâsee anterior horn 2, inferior horn, posterior horn 2.
lateral. 1. denoting a position farther from the median plane or midline of the body or a structure; the side or outside. 2. pertaining to a side. lateral aids. used by the rider to move a horse sideways; pressure by the neck rein and the thigh and calf on the same side at the same time.. denoting a position farther from the median plane or midline of the body or a structure; the side or outside. 2. pertaining to a side. lateral aids. used by the rider to move a horse sideways; pressure by the neck rein and the thigh and calf on the same side at the same time.