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

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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 Moon rocks found in Antarctica include tiny amounts of gas that may have come from Earth If true, then this geologically recent volcanic and tectonic activity means that the moon is still contracting as heat slowly leaks out from its interior, and that volcanism might still be happening today. Keith Cooper, Space.com, 3 Feb. 2025 But almost simultaneously, intense volcanism covered a vast area of the Indian subcontinent with over 2 kilometers thick lava flows. David Bressan, Forbes, 23 Dec. 2024 This led to the discovery of a hitherto unknown region of Io that's subject to extreme volcanism across 40,000 square miles (100,00 square kilometers). Robert Lea, Space.com, 31 Jan. 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 3 Mar. 2025.

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