/ Dictionary / Index F furuncle: Meaning and Definition of Find definitions for: fu•run•cle Pronunciation: (fyoor'ung-kul), [key] — n. Pathol. boil. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: furuncle (Thesaurus) Furtwängler furunculosis Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language