split-ring

A ring of metal wire looped almost twice about, as a keyring.

Noun

  1. A ring of metal wire looped almost twice about, as a keyring.
    • Something was moving to and fro there, very quietly; every now and then it tapped against the wall, or started on its movements with a faint metallic ringing, like the movement of keys on a split-ring. - 1898, H.G....
  2. Either of a pair of concentric metallic rings with slits on opposite sides, used in split-ring resonators.

Forms

split-rings split ring