Flavian Syllabification: (Fla·vi·an)Pronunciation: /ˈflāvēən/Definition of Flavian adjective of or relating to a dynasty ( ad 69-96) of Roman emperors including Vespasian and his sons Titus and Domitian. noun a member of the Flavian dynasty. Origin:from Latin Flavianus, from Flavius, a given name used by this dynastyFlavian in other Oxford dictionaries Definition of Flavian in the British & World English dictionary