an ancient kingdom and later a Roman province in S Europe between the Carpathian Mountains and the Danube, corresponding generally to modern Romania and adjacent regions.
Da·ci·a (dā'shē-ə, -shə) An ancient region and Roman province corresponding roughly to modern Romania. Inhabited before the Christian era by a people of Thracian stock with an advanced material culture, the region was abandoned to the Goths after A.D. 270. Da'ci·an adj. & n.