Momentum is defined as the amount of motion occurring in something that is moving, or the force that drives something forward to keep it moving.(noun)
See momentum in Webster's New World College Dictionary
See momentum in American Heritage Dictionary 4
noun pl. mo·men·ta (-tə) or mo·men·tums
Origin: Latin mōmentum, movement
Origin: , from *movimentum
Origin: , from movēre, to move; see meuə- in Indo-European roots.
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