/ Dictionary / Index F febris: Meaning and Definition of Find definitions for: feb•ris Pronunciation: (feb'ris), [key] — pl. -res (in prescriptions) fever. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. febrile February Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language