cotter pin

/ˌkɑdər pɪn/
IPA guide

Other forms: cotter pins

Definitions of cotter pin
  1. noun
    a cotter consisting of a split pin that is secured (after passing through a hole) by splitting the ends apart
    see moresee less
    type of:
    cottar, cotter
    fastener consisting of a wedge or pin inserted through a slot to hold two other pieces together
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