re·gion (r??j?n)n.1. a. A large, usually continuous segment of a surface or space: the upper regions of the atmosphere.b. A portion of the earth’s surface distinguished from others by some characteristic: the coastal region; the region of storm damage.c. A bioregion.d. A political district or unit, often with its adjacent lands: the Osaka region.2. An area of the body having natural or arbitrarily assigned boundaries: the abdominal region.3. An area of interest or activity; a sphere: the region of gender studies.4. An approximate degree or amount: costs in the region of one billion dollars.[Middle English, from Old French, from Latin regi?, regi?n-, from regere, to rule; see reg- in Indo-European roots.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.region (?ri?d??n) n1. any large, indefinite, and continuous part of a surface or space2. (Physical Geography) an area considered as a unit for geographical, functional, social, or cultural reasons3. (Government, Politics & Diplomacy) an administrative division of a country: Tuscany is one of the regions of the Italian Republic. 4. a realm or sphere of activity or interest5. range, area, or scope: in what region is the price likely to be?. 6. (Pathology) a division or part of the boday: the lumbar region. 7. (Government, Politics & Diplomacy) (in Scotland from 1975 until 1996) any of the nine territorial divisions into which the mainland of Scotland was divided for purposes of local government; replaced in 1996 by council areas. See also islands council[C14: from Latin regi?, from regere to govern]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014re?gion (?ri d??n) n. 1. an extensive, continuous part of a surface, space, or body: a region of the earth. 2. Usu., regions. the vast or indefinite entirety of a space or area, or something compared to one: the regions of the mind. 3. a part of the earth’s surface of considerable and usu. indefinite extent: a tropical region. 4. a district without respect to boundaries or extent: an industrial region. 5. a large, indefinite area or range of something specified: a region of authority. 6. an area of interest, activity, pursuit, etc.; field. 7. an administrative division of a country, territory, or city. 8. a major faunal area of the earth’s surface, sometimes one regarded as a division of a larger area. 9. a division or part of the body: the abdominal region. [1300?50;