Fertile Crescent UK /ˈfɜːtaɪl ˈkɹɛsənt/US /ˈfɝːtəl ˈkɹɛsənt/ noun1 •A crescent-shaped geographic region of fertile land in the Middle East in Western Asia, stretching from present-day Iraq through eastern Turkey to Syria, Lebanon, Israel, Jordan, Palestine, Egypt and Cyprus.This great semicircle, for lack of a name, may be called the fertile crescent. — 1914