ACCELERATOR
\ɐksˈɛləɹˌe͡ɪtə], \ɐksˈɛləɹˌeɪtə], \ɐ_k_s_ˈɛ_l_ə_ɹ_ˌeɪ_t_ə]\
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(chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
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a valve that regulates the supply of fuel to the engine
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a pedal that controls the throttle valve; "he stepped on the gas"
By Princeton University
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(chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
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a valve that regulates the supply of fuel to the engine
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a pedal that controls the throttle valve; "he stepped on the gas"
By DataStellar Co., Ltd
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One who, or that which, increases speed; any method in photography to shorten the time of exposure; any mechanical attachment or device for increasing speed; as, the accelerator of an automobile.
By William Dodge Lewis, Edgar Arthur Singer
By Henderson, I. F.; Henderson, W. D.