/ Dictionary / Index M monoscope: Meaning and Definition of Find definitions for: mon•o•scope Pronunciation: (mon'u-skōp"), [key] — n. a cathode-ray tube that provides a signal of a fixed pattern for testing television equipment. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. monosaccharide monosepalous Related Content Daily Word Quiz: maritime Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language