Dictionary.com

power amplifier

noun Electricity.

an amplifier for increasing the power of a signal.

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Origin of power amplifier

First recorded in 1915–20

Words nearby power amplifier

powdery, powdery mildew, Powell, Powell, Colin, power, power amplifier, power assist, power-assisted, PowerBar, power base, power behind the throne
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for power amplifier

power amplifier

noun

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