(Δομνῖνος), 1. A Christian, who apostatized to Judaism in the persecution under Severus, about A. D. 200, and to whom Serapion, bishop of Antioch, addressed a treatise intended to recall him to the faith. (Euseb. Hist. Eccl. 6.12; comp. Fabric. Bibl. Graec. vol. vii. p. 166.)