/ Dictionary / Index F formyl: Meaning and Definition of Find definitions for: for•myl Pronunciation: (fôr'mil), [key] — adj. Chem. containing the formyl group. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. formwork formylate 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