English dictionary
accelerator
nounPronunciation
æk.ˈsɛl.ə.ˌɹeɪ.tɚ
Audio pronunciation
Parts of speech
Definitions
noun
- a valve that regulates the supply of fuel to the engine
noun
- a scientific instrument that increases the kinetic energy of charged particles
noun
- a pedal that controls the throttle valve
noun
- (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
Example sentences
he stepped on the gas
