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power amplifier

noun

, Electricity.
  1. an amplifier for increasing the power of a signal.


power amplifier

noun

  1. electronics an amplifier that is usually the final amplification stage in a device and is designed to give the required power output
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Word History and Origins

Origin of power amplifier1

First recorded in 1915–20

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powerpower assist