REGION

noun Etymology: Middle English regioun, from Anglo-French regiun, from Latin ~-, regio line, direction, area, from regere to direct Date: 14th century an administrative area, division, or district, 2. an indefinite area of the world or universe , a broad geographic area distinguished by similar features , c. a major world area that supports a characteristic fauna, an area characterized by the prevalence of one or more vegetational climax types, 3. any of the major subdivisions into which the body or one of its parts is divisible, an indefinite area surrounding a specified body part , a sphere of activity or interest ; field , any of the zones into which the atmosphere is divided according to height or the sea according to depth, an open connected set together with none, some, or all of the points on its boundary