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  1. Oxford Dictionary

    velocity

    • IPA[vɪˈlɒsɪti]

    英式

    • n.
      the speed of something in a given direction；(in general use) speed

    • noun: velocity, plural noun: velocities

    • 釋義
    • 相關詞

    名詞

    • 1. the speed of something in a given direction the velocities of the emitted particles
    • ▪ (in general use) speed the tank shot backwards at an incredible velocity
    • ▪ the rate at which money changes hands within an economy.

    high-velocity

    • adj.
      having, involving, or discharged with great force and speed: the frame is lightweight yet durable enough to withstand high-velocity collisions

    Oxford Dictionary

    group velocity

    • n.
      the speed at which the energy of a wave travels.

    Oxford Dictionary

    terminal velocity

    • n.
      the constant speed that a freely falling object eventually reaches when the resistance of the ...

    Oxford American Dictionary

    radial velocity

    • n.
      the velocity of a star or other body along the line of sight of an observer.

    Oxford American Dictionary

    angular velocity

    • n.
      the rate of change of angular position of a rotating body.

    Oxford American Dictionary

    escape velocity

    • n.
      the lowest velocity which a body must have in order to escape the gravitational attraction of a ...

    Oxford Dictionary

    escape velocity

    • n.
      the lowest velocity which a body must have in order to escape the gravitational attraction of a ...

    Oxford American Dictionary

    phase velocity

    • n.
      the speed of propagation of a sine wave or a sinusoidal component of a complex wave, equal to ...

    Oxford Dictionary

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    velocity

    • IPA[vəˈläsədē]

    美式

    • n.
      the speed of something in a given direction: the velocities of the emitted particles

    Oxford American Dictionary