/ Dictionary / Index W wiring harness: Meaning and Definition of Find definitions for: wir'ing har"ness Pronunciation: [key] — Elect. Elect. a system of insulated conducting wires bound together with insulating materials, used in the electrical system of a machine, as a motor vehicle or washing machine. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. wiring wirra Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language