slip ring

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.

Origin of slip ring

First recorded in 1895–1900
Related formsslip-ring, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for slip ring

slip ring

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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012