Juvenal Syllabification: (Ju·ve·nal)Pronunciation: /ˈjo͞ovənl/Definition of Juvenal (circa 60-circa 140), Roman satirist; Latin name Decimus Junius Juvenalis. He wrote 16-verse satires that savagely attacked the vices and follies of Roman society, chiefly during the reign of Domitian. Juvenal in other Oxford dictionaries Definition of Juvenal in the British & World English dictionary