accelerator

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noun ac·cel·er·a·tor \ik-ˈse-lə-ˌrā-tər, ak-\

Definition of accelerator

  1. :  one that accelerates: such asa :  a muscle or nerve that speeds the performance of an actionb :  a device (such as a pedal) for controlling the speed of a motor vehicle enginec :  a substance that speeds a chemical reactiond :  an apparatus for imparting high velocities to charged particles (such as electrons)e :  an item of computer hardware that increases the speed at which a program or function operates <a graphics accelerator>

1611

First Known Use of accelerator

1611


ACCELERATOR Defined for English Language Learners

accelerator

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noun ac·cel·er·a·tor \ik-ˈse-lə-ˌrā-tər, ak-\

Definition of accelerator for English Language Learners

  • : a pedal in a vehicle that is pressed down to make the vehicle go faster

  • : a machine that causes charged particles (such as electrons and protons) to move at extremely high speeds


ACCELERATOR Defined for Kids

accelerator

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noun ac·cel·er·a·tor \ak-ˈse-lə-ˌrā-tər\

Definition of accelerator for Students

  1. :  a pedal in an automobile for controlling the speed of the motor


Medical Dictionary

accelerator

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noun ac·cel·er·a·tor \ik-ˈsel-ə-ˌrāt-ər, ak-\

Medical Definition of accelerator

  1. :  one that accelerates: asa:  a muscle or nerve that speeds the performance of an action <a cardiac accelerator>b:  a substance that speeds a chemical reactionc:  an apparatus for imparting high velocities to charged particles (as electrons)



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