parametric amplifier

noun

, Electronics.

1. 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

noun

1. 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

Word History and Origins

Origin of parametric amplifier¹

First recorded in 1955–60