Borehole

noun, verb

noun, verb ·Rare ·Advanced level

Definitions

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

    "Near-synonym: well"

  2. 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."

Verb
  1. 1
    To bore a hole of this kind (in). ambitransitive

Synonyms

All synonyms
borewellwellborewellbore

Example

More examples

"Miners working in rotating shifts will dig a 4-meter passage with picks and pneumatic hammers from the bottom of the shaft toward the borehole, which is 100 meters (300 feet) deep and just 25 cm wide."

Etymology

From bore + hole.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.