split ring
nounDefinition of split ring
1
: a metal ring which consists of two complete turns of a helix pressed flat together and upon which objects (such as keys) may be strung
2
: a primitive form of commutator for a dynamo or motor consisting of a simple ring or cylindrical shell split axially with the parts insulated from each other
3
: a metal ring used often along with bolts as a timber connector in heavy construction