Periphery or peripheral may refer to:

Music

Periphery (band) Periphery is an American progressive metal band that was formed in Washington, D.C., in 2005. Their musical style has been described as progressive metal, djent, and progressive metalcore. They are considered one of the pioneers of the djent mo ...

, American progressive metal band * ''Periphery'' (album), released in 2010 by Periphery *"Periphery", a song from Fiona Apple's album '' The Idler Wheel...''

Gaming and entertainment

*Periphery, a group of political entities in

BattleTech ''BattleTech'' is a wargaming and military science fiction franchise launched by FASA Corporation in 1984, acquired by WizKids in 2001, which was in turn acquired by Topps in 2003; and published since 2007 by Catalyst Game Labs. The trademark ...

, a wargaming franchise *''

The Peripheral ''The Peripheral'' is a 2014 science fiction mystery-thriller novel by William Gibson set in near- and post-apocalyptic versions of the future. The story focuses on a young rural-town American woman who lives in the near future, and on a Londo ...

'', a 2014 novel by William Gibson ** ''The Peripheral'' (TV series), a streaming series based on Gibson's novel

Mathematics

*Peripheral, an alternate mathematical term for

boundary parallel In mathematics, a boundary parallel, ∂-parallel, or peripheral closed ''n''-manifold ''N'' embedded in an (''n'' + 1)-manifold ''M'' is one for which there is an isotopy of ''N'' onto a boundary component of ''M''.Definition 3.4.7 ...

in manifold theory *

Peripheral cycle In graph theory, a peripheral cycle (or peripheral circuit) in an undirected graph is, intuitively, a cycle that does not separate any part of the graph from any other part. Peripheral cycles (or, as they were initially called, peripheral polyg ...

, a mathematical term in graph theory

Computing

Peripheral A peripheral device, or simply peripheral, is an auxiliary hardware device that a computer uses to transfer information externally. A peripheral is a hardware component that is accessible to and controlled by a computer but is not a core compo ...

, a device connected to a computer

Political

Periphery countries In world-systems theory, periphery countries are those that are less developed than the semi-periphery and core countries. These countries usually receive a disproportionately small share of global wealth. They have weak state institution ...

, the least developed countries in world systems theory *

Periphery (France) A periphery, (''Fr: couronne'') is an INSEE (French demographic statistics institution) statistical area designating a commuter belt around an urban unit (''Fr: unité urbaine''). Together these complete the INSEE urban area statistical area. Base ...

, statistical area designating a commuter belt around an urban unit *

Peripheries of Greece The regions of Greece () are the country's thirteen second-level administrative entities, counting decentralized administrations of Greece as first-level. Regions are divided into regional units, known as prefectures until 2011. History The ...

or ''administrative regions of Greece'' (Greek: , '), the country's first-level administrative divisions **

Peripheral units of Greece The 74 regional units of Greece (, ; singular , ) are the country's third-level administrative units (counting decentralized administrations as first-level). They are subdivisions of the country's 13 regions, and are further divided into municip ...

or ''regional units of Greece'' (Greek: , '), second-level administrative divisions

Biology

*Periphery, all of the

body Body may refer to: In science * Physical body, an object in physics that represents a large amount, has mass or takes up space * Body (biology), the physical material of an organism * Body plan, the physical features shared by a group of anim ...

outside of the central nervous system *

Peripherally selective drug Peripherally selective drugs have their primary mechanism of action outside of the central nervous system (CNS), usually because they are excluded from the CNS by the blood–brain barrier. By being excluded from the CNS, drugs may act on the rest o ...

, a drug with a primary mechanism of action outside of the central nervous system *

Peripheral nervous system The peripheral nervous system (PNS) is one of two components that make up the nervous system of Bilateria, bilateral animals, with the other part being the central nervous system (CNS). The PNS consists of nerves and ganglia, which lie outside t ...

, the part of the nervous system outside of the central nervous system *

Peripheral vision Peripheral vision, or ''indirect vision'', is vision as it occurs outside the point of fixation, i.e. away from the center of gaze or, when viewed at large angles, in (or out of) the "corner of one's eye". The vast majority of the area in the ...