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knife–edge

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noun \ˈnīf-ˌej\

Simple Definition of knife–edge

  • : something that is very narrow or sharp

Source: Merriam-Webster's Learner's Dictionary

Full Definition of knife–edge

  1. 1 :  a sharp wedge of steel or other hard material used as a fulcrum for a lever beam in a precision instrument

  2. 2 :  a sharp narrow knifelike edge

1818

First Known Use of knife–edge

1818



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