universal joint


Cars & Driving

  • noun a form of coupling between two rotating shafts allowing freedom of movement in all directions; general term for a family of universal joint designs
  • noun an accessory which allows a socket to be turned through an angle
  • acronymUJ


  • A coupling between two shafts set at an angle that allows them to rotate and swivel.


  • A joint that transmits rotary motion between shafts which do not lie along the same line. Used, for instance, in robotics.