/ Dictionary / Index L Leoncavallo: Meaning and Definition of Find definitions for: Le•on•ca•val•lo Pronunciation: (le-ôn"kä-väl'lô), [key] 1858–1919, Italian operatic composer and librettist. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Leonardo da Vinci leone Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language