from The Century Dictionary and Cyclopedia

  • n. A plain ring worn to prevent a valuable one from slipping from the finger; a keeper.
  • n. In electricity, an annular metal plate which surrounds the attracted disk of an electrometer and is maintained at the same potential as the disk.


Sorry, no etymologies found.


  • He was wearing an old frieze overcoat, the bottom of which had suffered from a puppy's teeth, and a bowler hat with a guard-ring dangling from its flat brim.

    Punch, or the London Charivari, Vol. 158, 1920-02-04

  • She gave him both her hands, but though he only pressed them silently, that pressure nearly destroyed the victory she had won, for the strong grasp snapped the slender guard-ring Moor had given her a week ago.


  • Because the sensor is constructed like a guard-ring capacitor, almost ideal linearity and resolution against metal targets is achieved.

    Manufacturingtalk - manufacturing industry news


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