hydraulic mining


noun

placer mining using a pressurized stream of water.

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Also called hy·drau·lick·ing [hahy-draw-li-king, -drol-i-king]. /haɪˈdrɔ lɪ kɪŋ, -ˈdrɒl ɪ kɪŋ/.

Origin of hydraulic mining

An Americanism dating back to 1855–60
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020