acceleration Hear it!

acceleration definition

ac·cel·era·tion (ak sel′ər ā′s̸hən, -ə rā′-; ək-)

noun

  1. an accelerating or being accelerated
  2. the rate of change in the velocity of a moving body: abbrev. a

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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