/ Dictionary / Index M Monoceros: Meaning and Definition of Find definitions for: Mo•noc•er•os Pronunciation: (mu-nos'ur-us), [key] — gen. -noc•er•o•tis the Unicorn, a constellation south of Gemini and east of Orion. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. monocarpous monochasium 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