accelerator

n. gas pedal of a motor vehicle; (Computers) expansion card or other hardware item that accelerates specific computer operations (such as the processing of graphics, floating-point calculations, etc.)

Accelerator may mean:Accelerator (car) (also gas pedal), that controls the engine speed of an automobileaccelerator (chemistry), a substance that increases the rate of a chemical reactionAccelerator (computing) to speed a function in computer hardwareAccelerator (album), by The Future Sound of London in 1992Accelerator (Bjørn Lynne album), by Bjørn Lynne in 2001Accelerator effect, the economic stimulus to private fixed investment that occurs due to growth in aggregate demandParticle accelerator, a device which uses electric and/or magnetic fields to propel electrically charged particles to high speedsAccelerator (Royal Trux album), an album by Royal Trux in 1998Accelerator Coaster, a roller-coaster that uses hydrolic accelerationAccelerator (song), a song by The O.A.O.T.'s in their album, Typical. This song appears in Tony Hawk's Downhill Jam
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Noun
1. a pedal that controls the throttle valve; "he stepped on the gas"
(synonym) accelerator pedal, gas pedal, gas, throttle, gun
(hypernym) pedal, treadle, foot pedal, foot lever
(part-holonym) car, auto, automobile, machine, motorcar
(derivation) accelerate, speed, speed up
2. a valve that regulates the supply of fuel to the engine
(synonym) throttle, throttle valve
(hypernym) valve
(part-holonym) fuel system
(derivation) accelerate, speed, speed up
3. (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
(synonym) catalyst
(hypernym) activator
(hyponym) biocatalyst
(classification) chemistry, chemical science
4. a scientific instrument that increases the kinetic energy of charged particles
(synonym) particle accelerator, atom smasher
(hypernym) scientific instrument
(hyponym) betatron, induction accelerator
(part-meronym) storage ring

(n.)
One who, or that which, accelerates. Also as an adj.; as, accelerator nerves.
  

<hardware> Additional hardware to perform some function faster than is possible in software running on the normal CPU. Examples include graphics accelerators and floating-point accelerators.
(1994-11-08)