Nīcaea (Nīcēa, Plin. Ep. 10, 48), ae, f., = Νίκαια. The name of several cities. A city in Bithynia, on Lake Ascanius, formerly called Antigonia, the mod. Isnik or Nice, Cic. Planc. 34, 84; id. Att. 14, 1, 2; Cat. 46, 5; Plin. Ep. 10, 49, 1; Plin. 5, 22, 43, § 148.

— A city in Locris, near Thermopylae, Liv. 28, 5, 18; 32, 32; 35.

— An Indian city on the Hydaspes, founded by Alexander the Great, Curt. 9, 3, 23; Just. 12, 8, 8.

— A city in Liguria, a colony of Marseilles, Plin. 3, 5, 7, § 47.

— Derivv. Nīcaeensis (Nīcensis, Plin. Ep. 10, 48), e, adj., Nicene, Plin. 7, 2, 2, § 12.

— As subst. plur., the inhabitants of Nicaea, in Bithynia, Cic. Fam. 13, 61 fin.

— Nī-caenus, a, um, adj., Nicene: Nicaena fides, the confession of faith established at the Council of Nice, Cod. Th. 1, 1, 2.