I.a river and town situated upon it on the east coast of Sicily, near Catina, Plin. 3, 8, 14, § 89; Sil. 14, 231; 9, 410; Serv. ad Verg. A. 9, 584.—Hence,
A. Sȳ^-maethĭus , a, um, adj., of or belonging to Symæthus, Symæthian: “flumina,” Verg. A. 9, 584: heros, i. e. Acis, son of the nymph of the Symæthus, Ov. M. 13, 879.—As subst.: Symaethĭi , ōrum, m., the dwellers on the Symæthus, Plin. 3, 8, 14, § 91.—