Quadrant may refer to:

Companies

Quadrant Cycle Company The Quadrant Cycle Company was a company in Birmingham, England that was established in 1890 as a bicycle manufacturer. They advanced to make motorcycles from 1899 until their demise in 1928. They also made a tricar called Carette in 1899 and a sm ...

, 1899 manufacturers in Britain of the Quadrant motorcar *

Quadrant (motorcycles) Quadrant was one of the earliest British motorcycle manufacturers, established in Birmingham in 1901. Famous for their big singles, Quadrant pioneered many innovations that proved important for motorcycle development but struggled after the F ...

, one of the earliest British motorcycle manufacturers, established in Birmingham in 1901 *

Quadrant Private Equity Quadrant Private Equity (also simply known as Quadrant) is an Australian private equity investment firm based in Sydney, Australia. The company was founded as Quadrant Capital in 1996 by Chris Hadley. Quadrant hosts multiple investment funds ...

, an Australian investment firm * Quadrant Records, an independent record label * Quadrant Televentures Ltd., a subsidiary of

Videocon Telecom Videocon Telecommunications Limited, formerly Videocon Mobile Services, was an Indian cellular service provider that offered GSM mobile services in India under the brand name Videocon. The company was a subsidiary of the Videocon Group, and was ...

, India

Geography

* A quadrant or section in a city street nomenclature system, see Address (geography)#Quadrants *

Quadrants of Washington, D.C. Washington, D.C., is administratively divided into four geographical quadrants of unequal size, each delineated by their ordinal directions from the medallion located in the Crypt under the Rotunda of the Capitol. Street and number addressin ...

Mathematics

* Quadrant (circle), a circular sector equal to one quarter of a circle, or half a semicircle *

Quadrant (plane geometry) The axes of a two-dimensional Cartesian system divide the plane into four infinite regions, called quadrants, each bounded by two half-axes. These are often numbered from 1st to 4th and denoted by Roman numerals: I (where the signs of the (''x ...

, a sector of a two-dimensional Cartesian coordinate system * Quadrant (solid geometry)

Military

* , a Second World War British/Australian warship * First

Quebec Conference, 1943 The First Quebec Conference, codenamed "Quadrant", was a highly secret military conference held during World War II by the governments of the United Kingdom, Canada, and the United States. It took place in Quebec City on August 17–24, 1943, at ...

(codenamed "QUADRANT")

Science and technology

Galactic quadrant A galactic quadrant, or quadrant of the Galaxy, is one of four circular sectors in the division of the Milky Way Galaxy. Quadrants in the galactic coordinate system In actual astronomical practice, the delineation of the galactic quadrants ...

, one out of four circular sectors in the division of the Milky Way galaxy *

Quadrant (abdomen) The human abdomen is divided into quadrants and regions by anatomists and physicians for the purposes of study, diagnosis, and treatment. The division into four quadrants allows the localisation of pain and tenderness, scars, lumps, and other ...

, a division of the abdominal cavity *

Quadrant (architecture) Quadrant in architecture refers to a curve in a wall or a vaulted ceiling. Generally considered to be an arc of 90 degrees (one quarter of a circle), or a half of the more commonly seen architectural feature (a crescent). The quadrant curve was ...

a curve in a wall or vaulted ceiling of a building *

Quadrant (instrument) A quadrant is an instrument used to measure angles up to 90°. Different versions of this instrument could be used to calculate various readings, such as longitude, latitude, and time of day. Its earliest recorded usage was in ancient India in ...

, an angle or time measuring instrument *

Quadrant (semigraphics) Text-based semigraphics or pseudographics is a primitive method used in early text mode video hardware to emulate raster graphics without having to implement the logic for such a display mode. There are two different ways to accomplish the em ...

, a 2×2 semigraphical pixel array in computing

Places

Quadrant Bus Station Swansea City bus station is a bus station serving Swansea, Wales. It lies immediately to the west of the Quadrant Shopping Centre. The station has 20 stands for local bus services with three more serving national coach services. Coach services ...

, Swansea Wales * Quadrant:MK, Network Rail's headquarters campus in Milton Keynes *

Quadrant Park Quadrant Park also known as the Quad or Quaddie was a nightclub in Bootle, UK opened during the late 1980s to the early 1990s. and one of the most important in the UK at the time. and was known to attract a number of international guest DJs. T ...

, a nightclub in Liverpool, Merseyside *

Quadrant Shopping Centre The Quadrant Shopping Centre is the principal under-cover shopping centre in Swansea, Wales. The centre opened in 1979. From the 1980s to 2019 it was home to the Swansea Devil, a controversial carved wooden statue of the Devil. The centre and ...

, Swansea, Wales *

The Quadrant ''The'' () is a grammatical article in English, denoting persons or things already mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the ...

, a housing estate in Kingston upon Hull, UK

Other

* ''Quadrant'' (album), a 1977 album by Joe Pass and Milt Jackson * Quadrant (college basketball), a performance measure derived from the Rating Percentage Index * ''Quadrant'' (magazine), an Australian literary and cultural journal * Triumph Quadrant, a four-cylinder motorcycle * A division of dentition - see

Glossary of dentistry This is a list of definitions of commonly used terms of location and direction in dentistry. This set of terms provides orientation within the oral cavity, much as anatomical terms of location provide orientation throughout the body. Terms ...

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