/ Dictionary / Index F flagelliform: Meaning and Definition of Find definitions for: fla•gel•li•form Pronunciation: (flu-jel'u-fôrm"), [key] — adj. Biol. long, slender, and flexible, like the lash of a whip. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. flagellation flagellum Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language