/ Dictionary / Index I impedance matching: Meaning and Definition of Find definitions for: imped'ance match"ing Pronunciation: [key] — Elect. Elect. the technique of choosing or adjusting electric circuits and components so that the impedance of the load is equal to the internal impedance of the power source, thereby optimizing the power transfer from source to load. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. impedance impede Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language