Definition of accelerator
: 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
Recent Examples of accelerator from the Web
Research out of Rice University ranks the New Venture Challenge as one of the most successful accelerator programs in the United States, even among non-university programs.
Instead of hitting the brakes, the suspects punched the accelerator.
In a matter of minutes, the 53-year-old Toyoda had the accelerator floored, pinning Musk’s head to the seat.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'accelerator'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
ACCELERATOR Defined for English Language Learners
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
Definition of accelerator for Students
: a pedal in an automobile for controlling the speed of the motor
Medical Definition of accelerator
: one that accelerates: asa: a muscle or nerve that speeds the performance of an action a cardiac acceleratorb: a substance that speeds a chemical reactionc: an apparatus for imparting high velocities to charged particles (as electrons)
Seen and Heard
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