noun
or kar·a·bi·ner ˌkarəˈbēnə(r)
( -s )
Etymology: German karabiner, short for karabinerhaken carbine hook, from karabiner carbine (modification of French carabine ) + haken hook; from its original use to fasten carbines to bandoleers — more at carbine
: an oblong ring that snaps to the eye or link of a piton to hold a freely running rope
[s]carabine.jpg[/s]