Breadcrumb Home > Dictionary > Index O operational amplifier: Meaning and Definition of Find definitions for: opera'tional am'plifier Pronunciation: [key] — Electronics. Electronics. a high-gain, high-input impedance amplifier, usually an integrated circuit, that can perform mathematical operations when suitably wired. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. operational operational calculus TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: preternatural Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language