momentum
momentum
[məˈmɛntəm]
(pl. momenta -tə)
[mass noun]
[məˈmɛntəm]
(pl. momenta -tə)
[mass noun]
- (Physics)the quantity of motion of a moving body, measured as a product of its mass and velocity
(物理)动量；冲量 - the impetus gained by a moving object
冲力，势头
the vehicle gained momentum as the road dipped.
下坡时，车辆冲力增大。
■the impetus and driving force gained by the development of a process or course of events
动力；势头
the investigation gathered momentum in the spring.
春天调查力度加大了。
- late 17th cent.: from Latin, from movimentum, from movere 'to move'
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