/ Dictionary / Index F flittermouse: Meaning and Definition of Find definitions for: flit•ter•mouse Pronunciation: (flit'ur-mous"), [key] — pl. -mice bat (def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. flitter flivver 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