mining

noun4

1. •
   The activity of removing valuable resources (often minerals) from the earth.
2. •
   (figurative) Any activity that extracts or undermines.

   • His extensive mining for apparently statistically significant results made any of his results questionable.
3. •
   Creation of new units of cryptocurrency by validating transactions and demonstrating proof of work.
4. •
   The activity of placing mines (the explosive devices).