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A river of eastern Russia rising near Lake Baikal and flowing about 4,300 km (2,670 mi) northeast and north to the Laptev Sea. Its delta is some 400 km (250 mi) wide.
Lena(ˈliːnə; Russian ˈljɛnə)
(Placename) a river in Russia, rising in S Siberia and flowing generally north through the Sakha Republic to the Laptev Sea by an extensive delta: the longest river in Russia. Length: 4271 km (2653 miles)
Le•na(ˈli nə, ˈleɪ-)
a river in the Russian Federation in Asia, flowing NE from Lake Baikal into the Laptev Sea. 2800 mi. (4500 km) long.