Ossetia Syllabification: (Os·se·ti·a)Pronunciation: /əˈsetēə, ôˈsēSHə/Definition of Ossetia a region of the central Caucasus. It is divided by the boundary between Russia and Georgia into two parts: North Ossetia and South Ossetia. It was the scene of ethnic conflict 1989–92. Ossetia in other Oxford dictionaries Definition of Ossetia in the British & World English dictionary