Meaning of “accelerator” in the English Dictionary

"accelerator" in English

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acceleratornoun [ C ]

uk /əkˈsel.ə.reɪ.tər/ us /əkˈsel.ɚ.eɪ.t̬ɚ/

(Definition of “accelerator” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"accelerator" in American English

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acceleratornoun [ C ]

us /ɪkˈsel·əˌreɪt̬·ər, æk-/

accelerator noun [ C ] (CHEMICAL)

chemistry a substance that is added to other substances to speed up a chemical reaction

accelerator noun [ C ] (SOMETHING THAT INCREASES RATE)

physics also particle accelerator a device used to accelerate very small pieces of nuclear material for scientific experiments


a pedal (= part worked with the foot) in a car that makes the car go faster when pressed

(Definition of “accelerator” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"accelerator" in Business English

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uk /əkˈseləreɪtər/ us

[ C ] something that makes a process happen or makes something progress more quickly:

Good companies use technology as an accelerator of momentum.
In the postwar period, governments saw co-operatives as an economic accelerator.
Accelerators offer you a way to pay off your mortgage sooner by increasing the number or amount of payments.

[ S ] also accelerator effect ECONOMICS the principle that investment increases as demand increases, but by greater amounts

put your foot on the accelerator also hit the accelerator, step on the accelerator

to make something happen or progress more quickly:

This company needs someone who can put their foot on the accelerator with our excellent new products.
take your foot off the accelerator

to make something happen or progress more slowly:

Insurers are taking their foot off the accelerator in anticipation of a softer market.

(Definition of “accelerator” from the Cambridge Business English Dictionary © Cambridge University Press)

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