accelerator - Definitions from Dictionary.com

6 results for: accelerator

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Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This

ac·cel·er·a·tor

Audio Help [ak-sel-uh-rey-ter] Pronunciation Key

–noun

1.	a person or thing that accelerates.

2.	Automotive. a device, usually operated by the foot, for controlling the speed of an engine.

3.	British. any two- or three-wheeled motor vehicle, as a motorcycle or motor scooter.

4.	Photography. a chemical, usually an alkali, added to a developer to increase the rate of development.

5.	Also called accelerant. Chemistry. any substance that increases the speed of a chemical change, as one that increases the rate of vulcanization of rubber or that hastens the setting of concrete, mortar, plaster, or the like.

6.	Anatomy, Physiology. any muscle, nerve, or activating substance that quickens a movement.

7.	Also called atom smasher, particle accelerator. Physics. an electrostatic or electromagnetic device, as a cyclotron, that produces high-energy particles and focuses them on a target.

8.	Economics. acceleration coefficient.

[Origin: 1605–15; 1930–35 for def. 7; accelerate + -or²

]

Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

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Encyclopædia Britannica, Inc.
accelerator

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American Heritage Dictionary - Cite This Source - Share This

ac·cel·er·a·tor Audio Help (āk-sěl'ə-rā'tər) Pronunciation Key
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.

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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

WordNet - Cite This Source - Share This

accelerator
noun
1.	a pedal that controls the throttle valve; "he stepped on the gas"
2.	a valve that regulates the supply of fuel to the engine
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

Kernerman English Multilingual Dictionary - Cite This Source - Share This
acˈcelerator noun

a pedal, lever etc that controls the speed or acceleration of a machine

Arabic:	دَوَّاسَة السُرْعَه
Chinese (Simplified):	加速器
Chinese (Traditional):	加速器
Czech:	akcelerátor
Danish:	gaspedal; gashåndtag; speeder
Dutch:	gaspedaal
Estonian:	gaasipedaal
Finnish:	kaasupoljin, kiihdytin
French:	accélérateur
German:	der Gaspedal
Greek:	πεντάλ γκαζιού
Hungarian:	gázpedál; (fizikában) gyorsító
Icelandic:	bensín-, *eldsneytisgjafi
Indonesian:	pedal gas
Italian:	acceleratore

Japanese:	アクセル
Korean:	가속 장치
Latvian:	akselerators
Lithuanian:	akseleratorius
Norwegian:	gasspedal
Polish:	regulator szybkości
Portuguese (Brazil):	acelerador
Portuguese (Portugal):	acelerador
Romanian:	accelerator
Russian:	акселератор
Slovak:	akcelerátor
Slovenian:	pospeševalnik, pedal za plin
Spanish:	acelerador
Swedish:	gaspedal, gasreglage
Turkish:	gaz pedalı

See also: accelerate

Free On-line Dictionary of Computing - Cite This Source - Share This

accelerator 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)