a hole drilled in the earth, as for the purpose of extracting a core, releasing gas, oil, water, etc.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use borehole in a sentence
People and livestock crowded around hand-pumped boreholes to find water, but the wells soon went dry.Zimbabwe’s climate migration is a sign of what’s to come | Andrew Mambondiyani | December 17, 2021 | MIT Technology Review
A company drilling for natural gas 2 miles below the surface on the island saw a borehole suddenly lose pressure before filling with liquid.Kilauea is erupting in Hawaii. Here are 7 things to know about volcanoes. | Umair Irfan | September 30, 2021 | Vox
When the petroleum company that had drilled many of these wells folded in the 1990s, as many did when crude prices bottomed out after the Gulf War, the open boreholes left behind became the responsibility of the state.Capping methane-spewing oil wells, one hole at a time | Nick Ehli | July 1, 2021 | Washington Post
To that end, they have tunneled kilometers below Earth’s surface, drilling outward from the bottoms of mine shafts and sinking boreholes deep into ocean sediments.Radioactivity May Fuel Life Deep Underground and Inside Other Worlds | Jordana Cepelewicz | May 24, 2021 | Quanta Magazine
Until a final resting place can be decided, temporary repositories—like the Holtec facility or Deep Isolation’s proposed boreholes—are appealing options for corralling the waste.Finding homes for the waste that will (probably) outlive humanity | Katie McLean | October 21, 2020 | MIT Technology Review
A small charge of high explosives is then pushed up to the end of the borehole and fired.
This of course cannot be seen in a borehole or very small section.Notes on the Fenland | T. McKenny Huges
The borehole is charged with the explosive to be fired, and the temperature is regulated by means of the steam pipe.
British Dictionary definitions for borehole
a hole driven into the ground to obtain geological information, release water, etc
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