Quadrant

Not to be confused with quadrat or quartile.

Quadrant may refer to:

Companies

• Quadrant Cycle Company, 1899 manufacturers in Britain of the Quadrant motorcar
• Quadrant (motorcycles), one of the earliest British motorcycle manufacturers, established in Birmingham in 1901
• Quadrant Private Equity, an Australian investment firm
• Quadrant Records, an independent record label
• Quadrant Televentures Ltd., a subsidiary of Videocon Telecom, India

Geography

• A quadrant or section in a city street nomenclature system, see Address (geography)#Quadrants
• Quadrants of Washington, D.C.

Mathematics

• Quadrant (circle), a circular sector equal to one-quarter of a circle, or half a semicircle
• Quadrant (plane geometry), a sector of a two-dimensional Cartesian coordinate system
• Quadrant (solid geometry)

Military

• HMAS Quadrant (G11), a Second World War British/Australian warship
• First Quebec Conference, 1943 (codenamed "QUADRANT")
• The quadrant sight, an M203 grenade launcher assembly attachment that gets inserted on the left side of the carrying handle on M16 rifles.

Science and technology

• Galactic quadrant, one out of four circular sectors in the division of the Milky Way galaxy
• Quadrant (abdomen), a division of the abdominal cavity
• Quadrant (architecture) a curve in a wall or vaulted ceiling of a building
• Quadrant (instrument), an angle or time-measuring instrument
• Quadrant (semigraphics), a 2×2 semigraphical pixel array in computing

Places

• Quadrant Bus Station, Swansea Wales
• Quadrant:MK, Network Rail's headquarters campus in Milton Keynes
• Quadrant Park, a nightclub in Liverpool, Merseyside
• Quadrant Shopping Centre, Swansea, Wales
• The Quadrant, 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
• Team Quadrant, a video content, apparel and esports team created by Formula One driver Lando Norris