Hypertext Webster Gateway: "accelerator"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Accelerator \Ac*cel"er*a`tor\, n.
One who, or that which, accelerates. Also as an adj.; as,
accelerator nerves.
From WordNet (r) 1.7 (wn)
accelerator
n 1: a pedal that controls the throttle valve; "he stepped on the
gas" [syn: {accelerator pedal}, {gas pedal}, {gas}, {throttle},
{gun}]
2: a valve that regulates the supply of fuel to the engine
[syn: {throttle}, {throttle valve}]
3: (chemistry) a substance that initiates or accelerates a
chemical reaction without itself being affected [syn: {catalyst}]
[ant: {anticatalyst}]
4: a scientific instrument that increases the kinetic energy of
charged particles [syn: {particle accelerator}, {atom
smasher}]
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