/ Dictionary / Index M microsporophyll: Meaning and Definition of Find definitions for: mi•cro•spo•ro•phyll Pronunciation: (mī"kru-spôr'u-fil, -spōr'-), [key] — n. Bot. a leaflike organ bearing microsporangia. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: microsporophyll (Thesaurus) microsporocyte microstat Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language