Lucretia Syllabification: (Lu·cre·tia)Pronunciation: /lo͞oˈkrēSHə/Definition of Lucretia (in Roman legend) a woman who was raped by a son of Tarquinius Superbus and took her own life; this led to the expulsion of the Tarquins from Rome by a rebellion under Brutus. Lucretia in other Oxford dictionaries Definition of Lucretia in the British & World English dictionary