/ Dictionary / Index F flagella: Meaning and Definition of Find definitions for: fla•gel•la Pronunciation: (flu-jel'u), [key] — n. a pl. of Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: flagella (Thesaurus) flag day flagellant Related Content Daily Word Quiz: belligerent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language