An area or division, especially part of a country or the world having definable characteristics but not always fixed boundaries
the western region of the country
Another term for zoogeographical region.
= motor area.
An underworld; hell.
A geographical region characterized by a distinctive combination of climate, vegetation, relief, etc.
A region in which bluegrass characteristically grows; specifically the northern part of the state of Kentucky.
The region beside the sternum, specifically between its lateral border and the parasternal line.
A term for the mountain and basin regions lying between the Rocky Mountains and the mountains of the US western coast
Each of a number of major areas of the earth having characteristic fauna (especially mammals). They include the Palearctic, Ethiopian, Oriental, Australian, Nearctic, and Neotropical regions
A region defined by characteristics of the natural environment rather than by man-made divisions
A major ecosystem defined by distinctive geography and receiving uniform solar radiation and moisture
A division of a region
A business region consisting of the whole of Asia as well as the countries of the Pacific Rim
(More fully nucleolar organizer region) a chromosomal region containing a cluster of ribosomal RNA genes, with which the nucleolus is associated.