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

Word History and Origins

Origin of power amplifier¹

First recorded in 1915–20

Example Sentences

This thing here is the generator of those waves and a very heavy power amplifier.

From Project Gutenberg