/ Dictionary / Index M malformation: Meaning and Definition of Find definitions for: mal•for•ma•tion Pronunciation: (mal"fôr-mā'shun, -fur-), [key] — n. faulty or anomalous formation or structure, esp. in a living body: malformation of the teeth. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: malformation (Thesaurus) malfeasance malformed Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language