AdviceMistress answered Tuesday February 8 2005, 6:09 pm: ac·cel·er·a·tor ( P ) Pronunciation Key (k-sl-rtr)
n.
A device, especially the gas pedal of a motor vehicle, for increasing speed.
Chemistry. A substance that increases the speed of a reaction.
Physics. A particle accelerator.
Main Entry: ac·cel·er·a·tor
Pronunciation: ik-'sel-&-"rAt-&r, ak-
Function: noun
: one that accelerates: as a : a muscle or nerve that speeds the performance of an action <a cardiac accelerator> b : a substance that speeds a chemical reaction c : an apparatus for imparting high velocities to charged particles (as electrons)
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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