/ Dictionary / Index M microbus: Meaning and Definition of Find definitions for: mi•cro•bus Pronunciation: (mī'krō-bus"), [key] — n. minibus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. microburst microcapsule Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language