a ring worn tightly in front of another ring to prevent the latter from slipping off the finger.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use guard ring in a sentence
It was borne on the third finger of the right hand, above the second joint, and was usually kept in place with a plain guard ring.The Heritage of Dress | Wilfred Mark Webb
British Dictionary definitions for guard ring
Also called: guard, keeper ring jewellery an extra ring worn to prevent another from slipping off the finger
an electrode used to counteract distortion of the electric fields at the edges of other electrodes in a capacitor or electron lens
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