A a


    • US Pronunciation
    • US IPA
    • UK Pronunciation
    • UK IPA
    • [ak-sel-uh-rey-ter]
    • /ækˈsɛl əˌreɪ tər/
    • /əkˈsel.ə.reɪ.tər/
    • US Pronunciation
    • US IPA
    • [ak-sel-uh-rey-ter]
    • /ækˈsɛl əˌreɪ tər/

Definitions of accelerator word

  • countable noun accelerator The accelerator in a car or other vehicle is the pedal which you press with your foot in order to make the vehicle go faster. 3
  • noun accelerator a device for increasing speed, esp a pedal for controlling the fuel intake in a motor vehicle; throttle 3
  • noun accelerator a machine for increasing the kinetic energy of subatomic particles or atomic nuclei and focusing them on a target 3
  • noun accelerator a substance that increases the speed of a chemical reaction, esp one that increases the rate of vulcanization of rubber, the rate of development in photography, the rate of setting of synthetic resins, or the rate of setting of concrete; catalyst 3
  • noun accelerator (in an economy) the relationship between the rate of change in output or sales and the consequent change in the level of investment 3
  • noun accelerator a muscle or nerve that increases the rate of a function 3

Information block about the term

Origin of accelerator

First appearance:

before 1605
One of the 40% oldest English words
1605-15; 1930-35 for def 7; accelerate + -or2

Historical Comparancy

Parts of speech for Accelerator


accelerator popularity

A common word. It’s meaning is known to most children of preschool age. About 90% of English native speakers know the meaning and use the word.
Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

accelerator usage trend in Literature

This diagram is provided by Google Ngram Viewer

Synonyms for accelerator

noun accelerator

  • particle accelerator — accelerator (def 7).
  • atom smasher — accelerator (sense 3)
  • gun — Also called gin rummy. a variety of rummy for two players, in which a player with 10 or fewer points in unmatched cards can end the game by laying down the hand.
  • catalyst — You can describe a person or thing that causes a change or event to happen as a catalyst.
  • gas — GNU assembler

Antonyms for accelerator

noun accelerator

  • brake — Brakes are devices in a vehicle that make it go slower or stop.
  • cinchers — Plural form of cincher.
  • anticatalyst — a substance that destroys or diminishes the activity of a catalyst

Top questions with accelerator

  • what is a particle accelerator?
  • what does a particle accelerator do?
  • how to build a particle accelerator?
  • if your accelerator suddenly gets stuck what should you do?
  • what is an accelerator?
  • how to make a particle accelerator?
  • how does a particle accelerator work?
  • what is the main purpose of a particle accelerator?
  • how to replace accelerator pedal position sensor?
  • what is accelerator theory?
  • what is a linear accelerator?
  • what is the accelerator?
  • what to do when accelerator gets stuck?
  • what is linear accelerator?
  • what is particle accelerator?

See also

Matching words

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