/ Dictionary / Index M monochord: Meaning and Definition of Find definitions for: mon•o•chord Pronunciation: (mon'u-kôrd"), [key] — n. an acoustical instrument dating from antiquity, consisting of an oblong wooden sounding box, usually with a single string, used for the mathematical determination of musical intervals. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. monochloroacetic acid monochroic Related Content Daily Word Quiz: abominable Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language