(engineering, mining) The subfield of engineering concerned with designing and constructing tunnels, mines, and other human-designed geologic structures within and on earth.

Subject to, or produced by geoengineering

plural of geoengineer

(transitive) To produce by means of geoengineering.

An engineer whose speciality is geoengineering (geological engineering). / Someone engaged in geoengineering (manipulation of Earth's habitats, especially to counter global warming).