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mud volcano

noun
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Definition of mud volcano

: an orifice in the earth from which gas or vapor issues either through a pool of mud or with the ejection of mud which may accumulate in a conical mound — compare air volcano

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“Mud volcano.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mud%20volcano. Accessed 5 Mar. 2021.

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