accelerator Definition in the Cambridge English Dictionary
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Definition of “accelerator” - English Dictionary

Definition of "accelerator" - American English Dictionary

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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 ​chemicalreaction

accelerator noun [C] (SOMETHING THAT INCREASES RATE)

physics (also particle accelerator) a ​device used to ​accelerate very ​smallpieces of ​nuclearmaterial for ​scientificexperiments

accelerator noun [C] (THING THAT MAKES SOMETHING GO FASTER)

a pedal (= ​partworked 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)

Definition of "accelerator" - British English Dictionary

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acceleratornoun [C]

uk   /əkˈsel.ə.reɪ.tər/  us   /-ɚ.eɪ.t̬ɚ/
the pedal (= a ​part that you ​push with ​yourfoot) in a ​vehicle that makes it go ​faster specialized physics in ​physics, a ​machine that makes particles (= ​smallpieces of ​matter)move very ​fast
(Definition of accelerator from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)

Definition of "accelerator" - Business English Dictionary

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acceleratornoun

uk   us   /əkˈseləreɪtər/
[C] something that makes a ​processhappen 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 ​investmentincreases as ​demandincreases, 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 ​companyneeds 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 ​softermarket.
(Definition of accelerator from the Cambridge Business English Dictionary © Cambridge University Press)
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