1. An increase in rate of change
   "modern science caused an acceleration of cultural change" 
2. The act of accelerating; increasing the speed
   - quickening, speedup 
3. (physics) a rate of increase of velocity

Derived forms: accelerations

See also: accelerate

Type of: alteration, change, hurrying, modification, rate, speed, speeding

Antonym: deceleration

Encyclopedia: Acceleration

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