/ Dictionary / Index M myriad: Meaning and Definition of Find definitions for: myr•i•ad Pronunciation: (mir'ē-ud), [key] — n. a very great or indefinitely great number of persons or things. ten thousand. —adj. of an indefinitely great number; innumerable: the myriad stars of a summer night. having innumerable phases, aspects, variations, etc.: the myriad mind of Shakespeare. ten thousand. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: myriad (Thesaurus) myria- myriad-leaf Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language