snap ring
Noun
Meaning
an oblong metal ring with a spring clip; used in mountaineering to attach a rope to a piton or to connect two ropes
Source: WordNetSynonyms
carabiner
karabiner
fastener
carabineer
lock ring
circlip
elastic ring
retaining ring
containment ring
securing ring
security ring
restraining ring
retainer ring
retainer segment
retention ring
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