four-wheel drive

Definitions of four-wheel drive
  1. noun
    a transmission that provides power directly to all four wheels of a motor vehicle
    synonyms: 4WD
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    type of:
    transmission, transmission system
    the gears that transmit power from an automobile engine via the driveshaft to the live axle
  2. noun
    a motor vehicle with a four-wheel drive transmission system
    synonyms: 4WD
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    type of:
    automotive vehicle, motor vehicle
    a self-propelled wheeled vehicle that does not run on rails
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