- a steel ring having two helical turns, often used as a key ring
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
Examples from the Web for split ring
It was locked, but the key was on her own split-ring, where he had put it for her the day he returned from London.The Heir of Redclyffe
Charlotte M. Yonge
It is a birthday treat to them already to take the key from my split-ring, and look together over the half-forgotten things.