• Definition for "knife-edge"
  • Sentence for "knife-edge"
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  • Same Context for "knife-edge"

knife-edge definition

  • noun:
    • A-sharp leading edge.
    • A sharp, slim side or edge: "saying lines that teeter regarding knife-edge between literature and lunacy” ( Vincent Canby).
    • A wedge of metal made use of as a low-friction fulcrum for a balancing ray or lever.
    • a bit of steel sharpened to an acute advantage or direction, and resting on a smooth area, offering due to the fact axis of movement of a pendulum, scale beam, or any other piece necessary to oscillate using least feasible rubbing.
    • A precarious balance that may be upset by a very tiny force in either path.
    • Used except that as an idiom: the side of a knife.
    • some metal sharpened to an acute advantage or direction, and resting on a smooth surface, serving because the axis of motion of a pendulum, scale ray, or any other piece required to oscillate with all the the very least possible rubbing.
    • The wedge-like piece of steel which serves as the axis regarding the good side of which a scale-beam, a pendulum, or any thing expected to oscillate using the the very least possible rubbing rests and turns. See balance.
    • the sharp cutting side of the blade of a knife
    • a narrow boundary
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