/ Dictionary / Index F falx: Meaning and Definition of Find definitions for: falx Pronunciation: (falks, fôlks), [key] — pl. fal•ces a structure shaped like a sickle, as a fold of dura mater separating the cerebral hemispheres. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Falwell FAM Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language