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ground sluice

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noun Mining.
  1. a trench, cut through a placer or through bedrock, through which a stream is diverted in order to dislodge and wash the gravel.
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Origin of ground sluice

First recorded in 1865–70
Related formsground-sluic·er, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for ground sluice

Historical Examples

  • After the dirt has all been put through the ground-sluice, it is cleaned up in a short board-sluice, or a tom.

    Hittel on Gold Mines and Mining

    John S. Hittell