/ Dictionary / Index L Lucius III: Meaning and Definition of Find definitions for: Lucius III Pronunciation: [key] (Ubaldo Allucingoli) died 1185, Italian ecclesiastic: pope 1181–85. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Lucius II luck 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