Hypertext Webster Gateway: "momentum"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Momentum \Mo*men"tum\, n.; pl. L. {Momenta}, F. {Momentums}. [L.
See {Moment}.]
1. (Mech.) The quantity of motion in a moving body, being
always proportioned to the quantity of matter multiplied
into the velocity; impetus.
2. Essential element, or constituent element.
I shall state the several momenta of the distinction
in separate propositions. --Sir W.
Hamilton.
From WordNet (r) 1.7 (wn)
momentum
n 1: an impelling force or strength; "the car's momentum carried
it off the road" [syn: {impulse}]
2: the product of a body's mass and its velocity; "the momentum
of the particles was deduced from meteoritic velocities"
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