Coppermine

[ kop-er-mahyn ]
/ ˈkɒp ərˌmaɪn /
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noun

a river in N Canada, in the central Northwest Territories, flowing N to the Arctic Ocean. 525 miles (845 km) long.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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