MurciaPronunciation: /ˈmʊəsɪə, ˈmurθja, ˈmursja/Definition of Murcia an autonomous region in SE Spain. In the Middle Ages, along with Albacete, it formed an ancient Moorish kingdom. the capital city of Murcia; population 430,571 (2008). Murcia in other Oxford dictionaries Definition of Murcia in the US English dictionary