knife-edge

noun
\ ˈnīf-ˌej How to pronounce knife-edge (audio) \

Definition of knife-edge

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

First Known Use of knife-edge

1818, in the meaning defined at sense 1

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The first known use of knife-edge was in 1818

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More Definitions for knife-edge

knife-edge

noun

English Language Learners Definition of knife-edge

: something that is very narrow or sharp

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Rhyming Dictionary: Words that rhyme with knife-edge

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