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| ac·cel·er·a·tor [ ak séllə ràytər ] (plural ac·cel·er·a·tors) |
noun |
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1. speed-increasing control: a pedal or other control mechanism used to cause a vehicle to increase speed
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2. nuclear physics device for giving particles high velocities: a machine used to increase the velocity, and hence the kinetic energy, of subatomic particles or nuclei, usually in preparation for collision with a target
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3. chemistry promoter of chemical reaction: a substance that speeds up a chemical reaction
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