/ Dictionary / Index C corona discharge: Meaning and Definition of Find definitions for: coro'na dis"charge Pronunciation: [key] — Elect. Elect. a discharge, frequently luminous, at the surface of a conductor or between two conductors of the same transmission line, accompanied by ionization of the surrounding atmosphere and often by a power loss. Also calledCf. brush discharge. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. coronach Coronado Related Content Daily Word Quiz: wary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language