Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

cotter pin

noun

Definition of cotter pin

  1. :  a half-round metal strip bent into a pin whose ends can be flared after insertion through a slot or hole




Learn More about cotter pin


Seen and Heard

What made you want to look up cotter pin? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

in the capacity or character of

Get Word of the Day daily email!