Marcion, ōnis, m. (Marcīon, Prud. Ham. 120), a heretic of Sinope, who gave himself out to be Christ, Tert. de Praescr. adv. Haeret. 30; Prud. Ham. 502.

—Hence, Marciōnensis, e, adj., of or belonging to the heretic Marcion: continentia, Tert. Praescr. Haeret. 30.

— Marciō-nista, ae, m., a follower of the heretic Marcion, a Marcionite.

—Plur., Cod. Just. 1, 5, 5.

— Marciōnīta, ae, m., for Marcionensis, of or belonging to the heretic Marcion: Marcionita Deus, tristis, ferus insidiator, i. e. feigned by Marcion, Prud. Ham. 129.

—Plur.: Marciōnītae, Marcionites, disciples of Marcion, Tert. Praescr. Her. 49; Lact. 4, 30, 10; Ambros. de Fide, 5, 13, 162.

— A native of Smyrna, the author of a treatise De simplicibus effectibus, Plin. 28, 4, 7, § 38.