PTE´RIA(Πτερία), the name of a town and district in Cappadocia, mentioned only by Herodotus (Hdt. 1.76), who relates that a great battle was fought in this district between Cyrus and Croesus. Stephanus B. mentions Pterium, a town of the Medes, and Pteria, a town of Sinope (s. v. Πτέριον).