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Noun accelerator has 4 senses
- accelerator, accelerator pedal, gas pedal, gas, throttle, gun - a pedal that controls the throttle valve; "he stepped on the gas"
--1 is a kind of pedal, treadle, foot pedal, foot lever
--1 is a part of
- accelerator, throttle, throttle valve - a valve that regulates the supply of fuel to the engine
--2 is a kind of valve
--2 is a part of fuel system
- catalyst, accelerator - (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
--3 is a kind of activator
--3 has particulars: biocatalyst; enzyme; platinum black
- accelerator, particle accelerator, atom smasher - a scientific instrument that increases the kinetic energy of charged particles
--4 is a kind of scientific instrument
--4 has parts: storage ring
--4 has particulars: