viscous coupling


Cars & Driving

  • noun a type of multi-disc clutch used in some 4wd vehicles; the discs rotate in a special fluid whose viscosity increases sharply whenever there is a difference in input and output shaft speeds; installed in the drive train between front and rear axles, the VC smoothly engages rear-wheel traction whenever the front wheels (and, as a result, the propeller shaft to the VC) rotate faster than the rear wheels.
  • acronymVC

Information & Library Science

  • abbreviation in Internet addresses, the top-level domain for St Vincent and the Grenadines