Mesopotamia
From Longman Dictionary of Contemporary EnglishMesopotamiaMes‧o‧po‧ta‧mi‧a /ˌmesəpəˈteɪmiə/ an area in western Asia around the River Tigris and the River Euphrates in Iraq, where, in ancient times, the world's first cities were built and several important ancient civilizations developed → see also Babylon, Fertile Crescent, the