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casinghead

noun
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Definition of casinghead

: a fitting at the top of the casing of an oil or gas well to allow pumping, cleaning, and the separation of gas from oil

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“Casinghead.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/casinghead. Accessed 26 January 2020.

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