/ Dictionary / Index M mycostat: Meaning and Definition of Find definitions for: my•co•stat Pronunciation: (mī'kō-stat"), [key] — n. a substance or preparation that prevents or inhibits the growth of molds. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mycosozin Mycostatin Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language