Periphery

Generally, a periphery is a boundary or outer part of any space or body. It is derived from the Greek word περιφέρεια, meaning a circumference or outer surface.

• In biology, the periphery of the body is the part that is away from the central or core regions.
  • For example, the peripheral nervous system is distinct from the central nervous system.
  • See also peripheral membrane protein.

The English Wiktionary has a dictionary definition (meanings of a word) for: periphery

• Peripheral vision is that part of visual perception that occurs in the periphery, i.e., near the edges, of the field of view.

• A computer peripheral is added to a host computer in order to expand its abilities.

• For peripheral submanifolds in mathematics, see boundary parallel.

• The Periphery includes nations that are not core countries - capitalist or industrialized nations. See Immanuel Wallerstein, Third World.

• The 13 peripheries of Greece are subnational subdivisions of that country, equivalent to regions.

• In the fictional universe of BattleTech, the Periphery is the region of interstellar space.