Rectangular open space completely or partially enclosed by buildings of an academic or civic character. The grounds of a quadrangle are often grassy or landscaped. Such an area, intended as an environment for contemplation, study, or relaxation, was a feature of monastic establishments and the colleges that evolved from them. The quadrangular layout at New College in Oxford University (completed 1386), with its partially connected buildings, was enormously influential in subsequent collegiate building.

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Quad may refer to:


  • Quadrangle in architecture, e.g., on a university campus
  • Quad, a dormitory room or suite housing four residents
  • Quad Cities, a region which includes the cities of Iowa cities of Bettendorf and Davenport and the Illinois cities of Moline, East Moline, and Rock Island


  • Quad Damage, a Quake and Unreal Tournament power-up
  • Quad, a type of combined robotic enemy in the Nintendo Gamecube game Metroid Prime 2
  • Quad (more commonly Quads), four of a kind in poker
  • Quad, an Harkonnen attack vehicle from the computer game Dune 2
  • Quad cannon, an anti-air weapon in Command & Conquer: Generals

Music, theatre and film

  • John Callahan's Quads!, an animated series from Nelvana
  • Quad, a unit of computer storage measurement in the fictional Star Trek universe
  • Science and mathematics

    • Quadriceps, a muscle
    • Quadruped, a creature or mechanism which moves on four legs
    • Quad (energy), a unit of energy (short for quadrillion) defined as 1015 British thermal units (about 1.055 exajoule (EJ) or 1.055 × 1018 J)
    • Quadrilateral, a four sided figure in plane geometry
    • Quadratic, the second power in mathematics
    • Quadrangle (geography), a 7.5-minute topographic map produced by the United States Geological Survey, covering in greater detail one quarter of the area of a 15-minute map
    • Quadrilateralized Spherical Cube, a mapping scheme for data collected on a spherical surface, such as a planet
    • QUaD, a telescope located at the South Pole that is designed to measure the cosmic microwave background radiation polarization

    Society and religion

    • Quad, a derogatory term for a quadriplegic
    • Quadrangle Club, one of the ten eating clubs at Princeton University
    • Quad, a unique member of a small group of employees from a single organisation sharing a common experience



    • Quad-core
    • Quad precision, a number stored using 16 eight-bit bytes, which is four times the size of 4-byte single precision
    • Quad Electroacoustics, a British manufacturer of electronic amplifiers, tuners and loudspeakers mainly for the high-end domestic market
    • Quad, an abbreviation for a type of videotape recorder, especially 2" Quadruplex videotape, where there are four record heads on a spinning drum which move perpendicular to the direction of tape travel
    • Quad, telecommunication term referring to four conductors formation used to form two balanced pairs
      • Star quad, four conductors in square formation, in which opposite conductors are connected in parallel at both ends to form a single, magnetically-concentric balanced pair, in order to minimise magnetic induction
    • Quadraphonic, or four-channel sound
    • quad, abbreviation for Quadrupole ion trap
    • Em quad, in typography, a space that is as wide as the height of the font
      • En quad, a space that is one half the width of an em quad
    • QUAD_(cipher), a stream cipher


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