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1. An impelling force or strength
   "the car's momentum carried it off the road";
   - impulse
    
2. The product of a body's mass and its velocity
   "the momentum of the particles was deduced from meteoritic velocities"
    
3. Enough activity to continue going; capacity for further growth
   "the campaign is gaining momentum";
   - steam

Derived forms: momentums, momenta

Type of: force, forcefulness, physical property, strength

Encyclopedia: Momentum, Willisau 1988