Meaning : A pedal that controls the throttle valve.
Example :
He stepped on the gas.
Synonyms : accelerator pedal, gas, gas pedal, gun, throttle
Meaning : A valve that regulates the supply of fuel to the engine.
Synonyms : throttle, throttle valve
Meaning : (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected.
Synonyms : catalyst
(chemistry) a substance that retards a chemical reaction or diminishes the activity of a catalyst.
anticatalystMeaning : A scientific instrument that increases the kinetic energy of charged particles.
Synonyms : atom smasher, particle accelerator