cotter pin


noun Machinery.

a cotter having a split end that is spread after being pushed through a hole to prevent it from working loose.

QUIZZES

CAN YOU GUESS THESE WORDS FROM AROUND THE US?

American English is not always as it appears to be ... get to know regional words in this quiz!
Question 1 of 10
A bet is synonymous with a wager, but what does it mean in New York?

Origin of cotter pin

First recorded in 1890–95
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for cotter pin

cotter pin

noun machinery

a split pin secured, after passing through holes in the parts to be attached, by spreading the ends
a tapered pin threaded at the smaller end and secured by a nut after insertion
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012