volcanism

noun

vol·​ca·​nism ˈväl-kə-ˌni-zəm 

ˈvȯl-

: volcanic action or activity

Examples of volcanism in a Sentence

Recent Examples on the Web

On Earth, these shifting plates drive volcanism and rock weathering, which are key to carbon cycling. — Morgan Underwood, The Conversation, 19 Nov. 2025

This heat drives more melting and more basaltic volcanism, a process that plays out not just in the minutes-to-hours timescale of the actual collision, but in tens or even hundreds of millions of years afterward. — Jacek Krywko, ArsTechnica, 5 July 2026

Rocks nabbed by China’s robotic lunar sample return missions, Chang’e 5 and 6, indicate active volcanism there up until at least two billion years ago. — Robin George Andrews, Scientific American, 7 Apr. 2026

The near side has a thin crust, low topography and extensive evidence of ancient volcanism, while the far side has a thick crust, higher elevations and far fewer signs of previous volcanic activity. — Cnn.com Wire Service, Mercury News, 6 Apr. 2026

Word History

First Known Use

1830, in the meaning defined above

Rhymes for volcanism

• autism
• fascism
• racism
• sikhism
• sophism
• statism
• sufism
• thomism
• tourism
• tropism
• abolitionism
• aldosteronism