I. A Roman historian in the second century of the Christian era, who made an abstract of the historical work of Trogus Pompeius.—
II. Justinus I., a Roman emperor of low birth (a swine-herd) in the sixth century of the Christian era.—
III. Justinus II., a Roman emperor in the latter half of the sixth century. —Hence, Justīnĭānus , a, um, adj., of or belonging to the emperor Justin: labores, Coripp. Laud. Just. 1, 263.—
IV. A philosopher who defended the Christians under Antoninus Pius, called also Justin Martyr, Hier. Ep. 70, 4 al.