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Definition of "accelerator" []

  • A device, especially the gas pedal of a motor vehicle, for increasing speed. (noun)
  • Chemistry A substance that increases the speed of a reaction. (noun)
  • Physics A particle accelerator. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "accelerator" in a sentence
  • "Here's a hint, the accelerator is the bigger peddle by ones right foot."
  • "But part of what's helped him put his foot on the accelerator is the acquisition of CC Sabathia after he was traded to the Brewers."
  • "There are non-obvious scenarios where you cannot tell whether your accelerator is sticking (such as the hill example)."