volcanism

noun

vol·​ca·​nism ˈväl-kə-ˌni-zəm How to pronounce volcanism (audio)
ˈvȯl-
: volcanic action or activity

Examples of volcanism in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Few areas on the farside, with its dearth of volcanism, have a high abundance of thorium. Keith Cooper, Space.com, 9 Apr. 2025 Mechanistic links between intense volcanism and the transient oxygenation of the Archean atmosphere As the marketing coordinator at Discover Magazine, Stephanie Edwards interacts with readers across Discover's social media channels and writes digital content. Stephanie Edwards, Discover Magazine, 10 Mar. 2025 For example, the presence of basalt would imply their materials came from the surface of Mars, where there has been extensive volcanism in the past. Keith Cooper, Space.com, 13 Mar. 2025 That means that volcanism on the far side must also be relatively recent, certainly in the past billion years, otherwise the wrinkle ridges would have formed much earlier. Keith Cooper, Space.com, 3 Feb. 2025 See All Example Sentences for volcanism

Word History

First Known Use

1830, in the meaning defined above

Time Traveler
The first known use of volcanism was in 1830

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Cite this Entry

“Volcanism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/volcanism. Accessed 22 Apr. 2025.

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