knife–edge

play
noun \ˈnīf-ˌej\

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



KNIFE–EDGE Defined for English Language Learners

knife–edge

play
noun \ˈnīf-ˌej\

Definition of knife–edge for English Language Learners

  • : something that is very narrow or sharp

Learn More about knife–edge


Seen and Heard

What made you want to look up knife–edge? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a principle or belief held by a group

Get Word of the Day daily email!