/ Dictionary / Index M megohm: Meaning and Definition of Find definitions for: meg•ohm Pronunciation: (meg'ōm"), [key] — n. Elect. a unit of resistance, equal to one million ohms. Symbol: M&OHgr;; Abbr.: meg Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: megohm (Thesaurus) MEGO megohmmeter Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language