1. someone or something that accelerates.
2. Also, accelerant. Chemistry any substance that increases the speed of a chemical change.
3. Motor Vehicles a device which increases the speed of the machine by opening the throttle, especially one operated by the foot.
4. Anatomy any muscle, nerve, or activating substance that quickens a movement.
5. Physics a device for producing high-energy particles, as a cyclotron.
Australian English dictionary. 2014.
Look at other dictionaries:
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Accelerator — Ac*cel er*a tor, n. One who, or that which, accelerates. Also as an adj.; as, accelerator nerves. [1913 Webster] … The Collaborative International Dictionary of English
accelerator — (n.) 1610s, from L. accelerator, agent noun from accelerare (see ACCELERATE (Cf. accelerate)). Motor vehicle sense is from 1900 … Etymology dictionary
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accelerator — ► NOUN 1) a foot pedal which controls the speed of a vehicle s engine. 2) Physics an apparatus for accelerating charged particles to high velocities. 3) a substance that speeds up a chemical process … English terms dictionary
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