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Definition of 'acceleration'


  1. an increase in rate of change; "modern science caused an acceleration of cultural change"
       Antonyms: deceleration slowing retardation
  2. the act of accelerating; increasing the speed
       Synonyms: quickening speedup
       Antonyms: deceleration
  3. (physics) a rate of increase of velocity
       Antonyms: deceleration

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