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  1. Oxford Dictionary

    momentum

    • IPA[mə(ʊ)ˈmɛntəm]

    英式

    • n.
      the quantity of motion of a moving body, measured as a product of its mass and velocity.；the impetus gained by a moving object

    • noun: momentum, plural noun: momenta

    • 釋義

    名詞

    • 1. the quantity of motion of a moving body, measured as a product of its mass and velocity.
    • 2. the impetus gained by a moving object the vehicle gained momentum as the road dipped
    • ▪ the impetus and driving force gained by the development of a process or course of events the investigation gathered momentum in the spring