noun
- narrow holes drilled into the ground or other materials, typically for extracting water, oil, gas, or for geological investigation
Usage: plural of borehole
Examples
- The engineers drilled several boreholes to test the soil composition.
- Water was found in three of the five boreholes they created.
- The mining company mapped underground resources using deep boreholes.
- Geologists analyzed rock samples from the boreholes.
- The construction project required boreholes to check foundation stability.
- Oil exploration involved drilling dozens of boreholes across the region.