/kwod/, n. Informal.a quadrangle, as on a college campus.[1810-20; shortened form]quad2/kwod/, n., v., quadded, quadding. Print.n.1. Also called quadrat. a piece of type metal of less height than the lettered types, serving to cause a blank in printed matter, used for spacing.v.t.2. to space out (matter) by means of quads.[1875-80; short for QUADRAT]quad3/kwod/, n. Informal.a quadruplet.[1895-1900; shortened form]quad4/kwod/, Informal.adj.1. quadraphonic.n.2. quadraphonic sound, or an electronic system for reproducing it: The recording sounded best in quad.[by shortening]quad5/kwod/, adj.1. designating or comprising four persons or things: rates for quad occupancy; a quad-level house.n.2. Informal. quadruple occupancy: Rates are based on quad.[shortening of QUADRUPLE or words formed with QUADRI-]quad6/kwod/, n. Informal.quadriplegic: a special ward for quads.[by shortening]
* * *unit of energy equal to 1 quadrillion (1015) British thermal units (British thermal unit) (BTU). The quad is a convenient unit for describing national and world energy resources. One quad is also equal to 293 billion kilowatt hours, or, for fuels of average heating values, 183 million barrels of petroleum, 38.5 million tons of coal, or 980 billion cubic feet of natural gas.
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