noun
- A cotter consisting of a split pin that is secured (after passing through a hole) by splitting the ends apart. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). cotter pin. Retrieved September 20, 2026, from http://smartdefine.org/cotter_pin/definitions/1322766 |
| Chicago | WordNet. 2010. "cotter pin" http://smartdefine.org/cotter_pin/definitions/1322766 (accessed September 20, 2026). |
| Harvard | WordNet 2010, cotter pin, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/cotter_pin/definitions/1322766>. |
| MLA | WordNet. "cotter pin" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/cotter_pin/definitions/1322766> |