'Knife-edge file' definitions:

Definition of 'Knife-edge file'

From: GCIDE
  • Knife-edge \Knife"-edge`\, n. (Mech.) A piece of steel sharpened to an acute edge or angle, and resting on a smooth surface, serving as the axis of motion of a pendulum, scale beam, or other piece required to oscillate with the least possible friction. [1913 Webster]
  • Knife-edge file. See Illust. of File. [1913 Webster]