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opencast mining

/ ˈəʊpənˌkɑːst /

noun

  1. mining by excavating from the surface Also calledesp USstrip miningAustral. and NZopen-cut mining
“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


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Word History and Origins

Origin of opencast mining1

C18: from open + archaic cast ditch or cutting

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open-castopen chain