Synonyms: accelerator, throttle, throttle valve
Definition: a valve that regulates the supply of fuel to the engine
Similar words: valve
Definition: control consisting of a mechanical device for controlling the flow of a fluid
Synonyms: accelerator, atom smasher, particle accelerator
Definition: a scientific instrument that increases the kinetic energy of charged particles
Similar words: scientific instrument
Definition: an instrument used by scientists
Synonyms: accelerator, accelerator pedal, throttle, gas, gas pedal, gun
Definition: a pedal that controls the throttle valve
Usage: he stepped on the gas
Similar words: pedal, treadle, foot lever, foot pedal
Definition: a lever that is operated with the foot
Synonyms: accelerator, catalyst
Definition: (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
Similar words: activator
Definition: (biology) any agency bringing about activation; a molecule that increases the activity of an enzyme or a protein that increases the production of a gene product in DNA transcription