knife-edge

Tanımlar (İngilizce)

1. isim A small piece of metal, usually steel, sharpened to an acute edge or angle, and resting on a smooth surface, serving as the fulcrum of a pendulum, scalebeam, or other piece required to oscillate with minimal friction.

   “Again, as the pendulum was provided with sharp knife-edges on opposite sides near its upper end, shaped like a V, on which it swung, the greater the weight of the pendulum the more wear there would be on these knife-edges.”

2. isim A precarious balance that could be upset by a very small force in either direction.

   “The game was on a knife-edge.”

3. isim Used other than figuratively or idiomatically: the edge of a knife.