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momentum (n.)

1690s in the scientific use in mechanics, "product of the mass and velocity of a body; quantity of motion of a moving body," from Latin momentum "movement, moving power" (see moment). Figurative use, "force gained by movement, an impulse, impelling force," dates from 1782.

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Definitions of momentum

momentum (n.)
an impelling force or strength;
the car's momentum carried it off the road
Synonyms: impulse
momentum (n.)
the product of a body's mass and its velocity;
the momentum of the particles was deduced from meteoritic velocities
From wordnet.princeton.edu