1. (noun) a pedal that controls the throttle valve

• accelerator pedal
• gas
• gas pedal
• gun
• throttle

2. (noun) a valve that regulates the supply of fuel to the engine

• throttle
• throttle valve

3. (noun) (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected

• catalyst

4. (noun) a scientific instrument that increases the kinetic energy of charged particles

• atom smasher
• particle accelerator

1. (noun) a pedal that controls the throttle valve

• foot lever
• foot pedal
• pedal
• treadle

2. (noun) a valve that regulates the supply of fuel to the engine

• valve

3. (noun) (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected

• activator

4. (noun) a scientific instrument that increases the kinetic energy of charged particles

• scientific instrument

1. (noun) (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected

• biocatalyst
• enzyme
• platinum black

2. (noun) a scientific instrument that increases the kinetic energy of charged particles

• betatron
• induction accelerator
• charge-exchange accelerator
• cockcroft and walton accelerator
• cockcroft and walton voltage multiplier
• cockcroft-walton accelerator
• cockcroft-walton voltage multiplier
• collider
• cyclotron
• linac
• linear accelerator

1. (noun) (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected

• chemical science
• chemistry

1. (noun) a pedal that controls the throttle valve

• accelerate
• speed
• speed up
• choke
• throttle

2. (noun) a valve that regulates the supply of fuel to the engine

• accelerate
• speed
• speed up
• choke
• throttle

3. (noun) (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected

• catalyse
• catalyze

1. (noun) (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected

• anticatalyst