• (n.) A follower of Priscillian, bishop of Avila in Spain, in the fourth century, who mixed various elements of Gnosticism and Manicheism with Christianity.
Pris·cil'lian·ist noun (Eccl. Hist.) A follower of Priscillian , bishop of Avila in Spain, in the fourth century, who mixed various elements of Gnosticism and Manicheism with Christianity.