/ Dictionary / Index L lusus naturae: Meaning and Definition of Find definitions for: lu•sus na•tu•rae Pronunciation: (l'sus nu-toor'ē, -tyoor'ē), [key] a deformed person or thing; freak. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lusty Lüta Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language