/ Dictionary / Index F fol.: Meaning and Definition of Find definitions for: fol. Pronunciation: [key] folio. (in prescriptions) a leaf. followed. following. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Fokker folacin Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language