/ Dictionary / Index M monozygotic: Meaning and Definition of Find definitions for: mon•o•zy•got•ic Pronunciation: (mon"u-zī-got'ik), [key] — adj. developed from a single fertilized ovum, as identical twins. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: monozygotic (Thesaurus) monoxide Monroe Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language