Region Definition–noun | 1. | an extensive, continuous part of a surface, space, or body: a region of the earth. |
| 2. | Usually, regions. the vast or indefinite entirety of a space or area, or something compared to one: the regions of the firmament; the regions of the mind. |
| 3. | a part of the earth's surface (land or sea) of considerable and usually indefinite extent: a tropical region. |
| 4. | a district without respect to boundaries or extent: a charming region in Connecticut. |
| 5. | a part or division of the universe, as the heavens: a galactic region. |
| 6. | a large indefinite area or range of something specified; sphere: a region of authority. |
| 7. | an area of interest, activity, pursuit, etc.; field: studies in the region of logic. |
| 8. | an administrative division of a city or territory. |
| 9. | Zoogeography. a major faunal area of the earth's surface, sometimes one regarded as a division of a larger area. |
| 10. | Anatomy. a place in or a divisi
eda
on of the body or a part of the body: the abdominal region. |
| 11. | Mathematics. | a. | Also called domain. an open connected set. |
| b. | the union of such a set and some or all of its boundary points. |
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From Dictionary
Related topics from Britannicaregion
in the social sciences, a cohesive area that is homogeneous in selected defining criteria and is distinguished from neighbouring areas or regions by those criteria. It is an intellectual construct ...
faunal region
any of six or seven areas of the world defined by animal geographers on the basis of their distinctive animal life. These regions differ only slightly from the floristic regions (q.v.) of botanists.Ethiopian region
one of the major land areas of the world defined on the basis of its characteristic animal life. Part of the Paleotropical, or Afro-Tethyan, realm, it encompasses Africa south of the Sahara and the ...
Neotropical region
one of the six major biogeographic areas of the world defined on the basis of its characteristic animal life. It extends south from the Mexican desert into South America as far as the subantarctic ...
H II region
in astronomy, interstellar matter consisting of ionized hydrogen atoms. Such regions occur as hot, ionized gaseous clouds, sometimes called emission nebulae. The energy that is responsible for ...
Brussels-Capital Region
region, north-central Belgium. The region is coextensive with Greater Brussels, a metropolitan area that contains the capital city of Brussels. The officially bilingual Brussels-Capital Region was ...
Australian region
one of the six major land areas of the world defined on the basis of its characteristic animal life. It encompasses Australia and the outlying islands of Tasmania, New Guinea, New Caledonia, New ...
Holarctic region
one of the six major land areas of the world defined on the basis of its characteristic animal life. It encompasses all the nontropical parts of Europe and Asia, Africa north of the Sahara, and North ...
Tokai region
industrial region, central Japan, extending along the Tokaido Line (railway) between Tokyo and Nagoya, and occupying areas of Shizuoka ken (prefecture). Tokai is neither an administrative nor a ...
D region
lowest ionospheric region, at altitudes of about 70 to 90 km (40 to 55 miles). The D region differs from the other ionospheric regions (denoted E and F) in that its free electrons almost totally ...
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