bore·hole

[bawr-hohl, bohr-]
noun Mining.
a hole drilled in the earth, as for the purpose of extracting a core, releasing gas, oil, water, etc.

Origin:
1700–10; bore1 + hole

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World English Dictionary
borehole (ˈbɔːˌhəʊl) [Click for IPA pronunciation guide]
 
n
a hole driven into the ground to obtain geological information, release water, etc

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Cite This Source
00:10
Borehole is always a great word to know.
So is ort. Does it mean:
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
a scrap or morsel of food left at a meal.
Example sentences
Borehole quality deteriorates with time after drilling.
Hockey sticks are also seen in borehole, stalagmite and ice cores bing.
Cold water is pumped down a deep borehole and returns superheated to spin a
  turbine.
When the primer is the first cartridge or one of the first cartridges to be
  loaded into the borehole, it is called bottom priming.
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