- an ancient district in W Greece, now part of the province of Aetolia and Acarnania.
- a mountainous region forming (with the region of Acarnania) a department of W central Greece, north of the Gulf of Patras: a powerful federal state in the 3rd century bc . Chief city: Missolonghi. Pop (with Acarnania): 219 092 (2001). Area: 5461 sq km (2108 sq miles)