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.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for slave river
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 called: Great Slave River
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012