borehole

plural boreholes

1. A hole bored into the ground to collect samples for analysis or to extract oil or water.

   Near-synonym: well

   2 more examples

   The state of the groundwater is monitored at various boreholes in the area.

   Extensive borehole information and tendered contract prices make these cost estimates much more plausible than earlier estimates.

   2020 May 6, Jim Steer, “Full Business Case offers fresh insight into HS2's prospects”, in Rail, page 51

   Synonyms: well

2. Any other hole that has been bored into something.

   There were little boreholes in the oak beam, indicating that insects had once taken some interest in it.

   Synonyms: bore

present singular third person boreholes · participle present boreholing · participle past boreholed · past boreholed

1. ambitransitiveTo bore a hole of this kind (in).