accelerator   (TTS Sound)

The noun accelerator has 4 senses

• accelerator, accelerator pedal, gas pedal, gas, throttle, gun -- (a pedal that controls the throttle valve; "he stepped on the gas")


• accelerator, throttle, throttle valve -- (a valve that regulates the supply of fuel to the engine)


• catalyst, accelerator -- ((chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected)


• accelerator, particle accelerator, atom smasher -- (a scientific instrument that increases the kinetic energy of charged particles)