- [noun] a pedal that controls the throttle valve; "he stepped on the gas"
Synonyms: pedal, gas pedal, gas, throttle, gun
- [noun] a valve that regulates the supply of fuel to the engine
Synonyms: throttle, throttle valve
- [noun] (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
- [noun] a scientific instrument that increases the kinetic energy of charged particles
Synonyms: particle atom smasher