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Cour·an·tynealso Co·ran·tijn (kôr′ən-tīn′)
A river rising in southeast Guyana and flowing about 725 km (450 mi) to the Atlantic Ocean. It forms the Guyana-Suriname border in its lower course.
(Placename) a river in N South America, rising in S Guyana and flowing north to the Atlantic, forming the boundary between Guyana and Surinam. Length: 765 km (475 miles). Dutch name: Corantijn
Cour•an•tyne(ˈkɔr ənˌtaɪn, ˈkoʊr-)
a river in N South America, flowing N along the Guyana-Suriname border to the Atlantic Ocean. ab. 450 mi. (725 km) long.