Linchpin
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A linchpin, also spelled linch pin, lynchpin, or lynch pin, is a fastener used to prevent a wheel or other part from sliding off the axle upon which it is riding. The word is first attested in the late 14th century and derives from Middle English elements meaning "axletree pin".[1]
Securing implements onto the three-point hitch of a tractor is an example of application. Linchpins may also be used in place of an R-clip for securing hitch pins.[citation needed]
The word "linchpin" is also used figuratively to mean "something [or someone] that holds the various elements of a complicated structure together."[2]
See also
References
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Wikimedia Commons has media related to Lynch pins. |
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Look up linchpin in Wiktionary, the free dictionary. |
- ↑ "ˈlinch-pin, n.". OED Online. June 2014. Oxford University Press. http://www.oed.com/view/Entry/108578 (accessed August 25, 2014).
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
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