ZONE Copy link • ZONEA girdle, cingulus. A division of the earth, cingulus terrae (Cic., Somn. Scip., 6, or De Rep., 6, 20, 21. ☞ In poets and post-Augustan prose, usually zona): caelum: caeli regio, ora, or plaga (quarter of the heavens): positio caeli (Tac., Agr., 11, 3): regio (district). The torrid zone, zona torrida (Plin.); ardores (Sall., Jug., 18, 9). The frigid zones, glaciales caeli regiones (after Col., 3, 1, 3): the temperate zones, temperatae caeli regiones (Vitr.). For a poetical description of the five zones, Vid: Verg., Georg., 1, 233-238.