/ Dictionary / Index F flagellar: Meaning and Definition of Find definitions for: fla•gel•lar Pronunciation: (flu-jel'ur), [key] — adj. Biol. of or pertaining to a flagellum. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. flagellant Flagellata Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language