a ring worn tightly in front of another ring to prevent the latter from slipping off the finger.
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What does “vacillate” mean?
Origin of guard ring
First recorded in 1810–20
Words nearby guard ring
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
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