Last Updated
：2025/11/20
cotter
Noun
informal
Japanese Meaning
機械工学：機械部品を固定するため、スロットに差し込んで使用されるピンまたはくさび。 / 非公式：コッターピン（同じく機械の部品固定具として用いられる）
（ plural ）
Quizzes for review
(mechanical engineering) A pin or wedge inserted through a slot to hold machine parts together. / (informal) A cotter pin.
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cotter
The engineer tapped a new cotter into the shaft to secure the gear.
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The engineer tapped a new cotter into the shaft to secure the gear.
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