mining
US /ˈmaɪ.nɪŋ/
UK /ˈmaɪ.nɪŋ/

1.
the process or industry of obtaining coal or other minerals from a mine
:
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Coal mining is a major industry in this region.
•
The company specializes in gold mining.
2.
the action of laying explosive mines
:
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The army was involved in the mining of the coastal waters.
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The treaty prohibits the mining of civilian areas.