| Noun | 1. | Euphrates - a river in southwestern Asia; flows into the Persian Gulf; was important in the development of several great civilizations in ancient MesopotamiaAl-Iraq, Irak, Iraq, Republic of Iraq - a republic in the Middle East in western Asia; the ancient civilization of Mesopotamia was in the area now known as Iraq; modern government is involved in state-sponsored terrorism Syria, Syrian Arab Republic - an Asian republic in the Middle East at the east end of the Mediterranean; site of some of the world's most ancient centers of civilization; involved in state-sponsored terrorism Republic of Turkey, Turkey - a Eurasian republic in Asia Minor and the Balkans; achieved independence from the Ottoman Empire in 1923 river - a large natural stream of water (larger than a creek); "the river was navigable for 50 miles" | |