definition of the word accelerator

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accelerator (plural accelerators) Often used adjectivally

1. One who, or that which, accelerates.
2. A device for causing acceleration.
3. A substance which speeds up chemical reactions.
4. accelerator pedal.

• accelerator pedal, (automotive): a pedal used to control the vehicle's speed
• accelerator nerves, (physiology): - nerve that speeds a bodily function
• accelerator card, (computers): a device that speeds up computer processing
• particle accelerator

Definition from Wiktionary Content avaible with GNU Free Documentation License

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