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momentum

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momentum

Main Entry:: mo·men·tum
Pronunciation:: \mō-ˈmen-təm, mə-\
Function:: noun
Inflected Form(s):: plural mo·men·ta \-ˈmen-tə\ or momentums
Etymology:: New Latin, from Latin, movement
Date:: 1610

1: a property of a moving body that the body has by virtue of its mass and motion and that is equal to the product of the body's mass and velocity; broadly : a property of a moving body that determines the length of time required to bring it to rest when under the action of a constant force or moment2: strength or force gained by motion or through the development of events : impetus <the campaign gained momentum>

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