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momentum

mo·men·tum

momentum

 
pronunciation:
mo men tm
part of speech: noun
inflections: momenta, momentums
definition 1: in physics, a quantity that characterizes the motion of a body, equal to its mass multiplied by its velocity.
definition 2: strength or speed of movement; impetus.
the momentum of his leapthe momentum of an increasingly popular political campaign
synonyms:
impetus
similar words:
force, impulse, propulsion, thrust