/ Dictionary / Index B biflagellate: Meaning and Definition of Find definitions for: bi•flag•el•late Pronunciation: (bī-flaj'u-lāt", -lit), [key] — adj. Zool. having two flagella. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: biflagellate (Thesaurus) bifilar biflex Related Content Daily Word Quiz: supercilious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language