Breadcrumb Home > Dictionary > Index P parametric amplifier: Meaning and Definition of Find definitions for: par'amet'ric am'plifier Pronunciation: [key] — Electronics. Electronics. a device, as an electron tube or transistor, that amplifies a high-frequency input signal by sinusoidally varying the reactance of the circuit. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. parameterize parametric equation TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: spurious Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language