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amplidyne

[am-pli-dahyn] /ˈæm plɪˌdaɪn/
noun, Electricity
1.
a direct-current generator with a rotating armature, capable of magnifying a small amount of power supplied to the field winding of the device and using the amplified power to operate an attached, direct-current motor.
Origin
1935-1940
1935-40; ampli(fier) + dyne
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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