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atom smasher	see "accelerator."
betatron	in physics, an electron accelerator in which the speed of the electrons is increased to high energies, from a few million to a few hundred million electron volts, by the action of a rapidly changing magnetic field.
collider	in nuclear physics, a type of accelerator in which occurs the bombardment of certain charged particles by certain others, such as electrons and positrons; colliding-beam machine.
field magnet	a magnet used to produce and maintain a magnetic field in an electrical device such as a motor, generator, or particle accelerator.
floor	to press (an automobile accelerator) to the floor. [1/9 definitions]
gas	the accelerator of an automobile. [1/14 definitions]

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