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locknut

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noun lock·nut \-ˌnət\

Definition of locknut

  1. 1 :  a nut screwed down hard on another to prevent it from slacking back

  2. 2 :  a nut so constructed that it locks itself when screwed tight against another part



Circa 1864

First Known Use of locknut

circa 1864


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a jerking and twitching of the body

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