knife-edge Hear it!

knife-edge definition

knife·-edge (nīf′ej′)

noun

  1. the edge of a knife
  2. any very sharp edge
  3. a metal wedge whose fine edge serves as the fulcrum for a scale beam, pendulum, etc.

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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