Definition of Fertile Crescent in US English:

Fertile Crescent

proper noun

  • A crescent-shaped area of fertile land in the Middle East extending from the eastern Mediterranean coast through the valley of the Tigris and Euphrates Rivers to the Persian Gulf. It was the center of the Neolithic development of agriculture (from 7000 BC), and the cradle of the Assyrian, Sumerian, and Babylonian civilizations.