region more (re'jon)

A certain definite or le circumscribed. space,r. aulic The r. about the aula, central gray r. The medullary substance of the cerebral hemisphere, ciliary r. 1. The zone of the eyeball which contains the ciliary body. 2. That portion of the lid that bears the cilia. clavicular r. The space about the clavicle, costal r's. The lateral aspects of the chest, epigastric r. The portion of the anterior abdominal surface bounded by two vertical lines pa ing through the middle points of Poupart's ligaments, and by two horizontal lines touching respectively the lower margin of the sternum and the lowest part of the thorax, gastric r. The r. over