/ Dictionary / Index U unifilar: Meaning and Definition of Find definitions for: u•ni•fi•lar Pronunciation: (y"nu-fī'lur), [key] — adj. having or involving only one thread, wire, or the like. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: unifilar (Thesaurus) unified field theory uniflagellate Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language