Adygea Syllabification: (A·dy·gea)Pronunciation: /ˌadəˈgāə/Definition of Adygea an autonomous republic in the northwestern Caucasus in southwestern Russia; population 440,500 (est. 2009); capital, Maikop. Its population is largely Muslim. Full name Adygei Autonomous Republic . Adygea in other Oxford dictionaries Definition of Adygea in the British & World English dictionary