slip ring

American  

noun

Electricity.

1. a metal ring, usually of copper or cast iron, mounted so that current may be conducted through stationary brushes into or out of a rotating member.

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slip ring British  

noun

1. electrical engineering a metal ring, mounted on but insulated from a rotating shaft of a motor or generator, by means of which current can be led through stationary brushes into or out of a winding on the shaft

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Other Word Forms

• slip-ring
  adjective

Etymology

Origin of slip ring

First recorded in 1895–1900