periphery

Definitions

General English

Economics

  • This is something that is on the edge. It therefore is used to refer to countries that are located far from the center of the world's economic activity.

Medical

  • noun the regions of the body where the nerves end, such as the sense organs or the muscles
  • noun the surface of something

Military

  • noun the edge of an area or its surrounding area
http://www.dictionarycentral.com/definition/periphery.html