downhole

American

[daun-hohl] / ˈdaʊnˌhoʊl /

noun

a hole dug or drilled downward, as in a mine or a petroleum or gas well.

adjective

occurring or situated in such a hole.

downhole British

/ ˈdaʊnˌhəʊl /

adjective

(in the oil industry) denoting any piece of equipment that is used in the well itself

"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

Etymology

Origin of downhole

down ¹ + hole

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

downhole

“For example, while it does not change the level of downhole pressure the agency requires operators to maintain in a given well to avoid an accident, it removes the word ‘safe’ in describing that balance.

From Washington Post ● Jan. 2, 2018

Mr. Fisher and others lobbied the Chilean government to let them use the drills, known as downhole hammers, which have air-powered bits that pound the rock as the drill rotates.

From New York Times ● Oct. 12, 2010

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023