The accelerator in a car or other vehicle is the pedal which you press with your foot in order to make the vehicle go faster. He eased his foot off the accelerator
{i} gas pedal of a motor vehicle; (Computers) expansion card or other hardware item that accelerates specific computer operations (such as the processing of graphics, floating-point calculations, etc.)
a valve that regulates the supply of fuel to the engine a scientific instrument that increases the kinetic energy of charged particles a pedal that controls the throttle valve; "he stepped on the gas
(Otomotiv) Otherwise know as the gas pedal, it is the pedal that makes the car go faster the further it is depressed