Definition of borehole in English:

borehole

Line breaks: bore|hole
Pronunciation: /ˈbɔːhəʊl
 
/

noun

A deep, narrow hole made in the ground, especially to locate water or oil.
More example sentences
  • Encia workmen are punching boreholes deep into the ground to suck up oily chemicals which leaked into aquifers far beneath the surface.
  • Then a specific place in the center of each grid has been selected for excavating the geotechnical borehole.
  • In extracting geothermal energy from hot dry rock, cold water is pumped down into the rock mass to pass through fractures and exit from a borehole or set of boreholes.

Definition of borehole in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day oleaginous
Pronunciation: ˌəʊlɪˈadʒɪnəs
adjective
rich in, covered with, or producing oil; oily