Slave River

noun

1. a river in NE Alberta and the Northwest Territories, in Canada: flowing from Lake Athabasca NW to Great Slave Lake. 258 miles (415 km) long.

Slave River

noun

1. a river in W Canada, in the Northwest Territories and NE Alberta, flowing from Lake Athabaska northwest to Great Slave Lake. Length: about 420 km (260 miles) Also calledGreat Slave River