parametric amplifier

American

noun

Electronics.

a device, as an electron tube or transistor, that amplifies a high-frequency input signal by sinusoidally varying the reactance of the circuit.

parametric amplifier British

noun

a type of high-frequency amplifier in which energy from a pumping oscillator is transferred to the input signal through a circuit with a varying parameter, usually a varying reactance

"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

Etymology

Origin of parametric amplifier

First recorded in 1955–60

Example Sentences

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See Examples For:

parametric amplifier

Rather than relying on one long crystal or stacking many short ones, they run the light repeatedly through a single short crystal inside an optical parametric amplifier.

From Science Daily ● Nov. 9, 2025

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023