Above. On top of. This word is used when an organism is in anatomic position and it is necessary to describe a feature on its body so that others can understand without actually seeing the organism where something is in reference to something else. When talking about most mammals, the head is superior to the foot.

Also see anterior, posterior, ventral, dorsal, cephalic, caudal, proximal, distal, medial, lateral, superficial, deep, prone, supine, plane, and region.