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

The plateau was formed during the Cretaceous, around 116 and 90 million years ago, by one of the largest volcanic eruptions in Earth’s history, but the exact site and source of the volcanism eluded scientists. —David Bressan, Forbes.com, 30 Apr. 2025

The Voyager 1 spacecraft had flown past this moon of Jupiter, catching the first glimpse of active volcanism on a world other than Earth. —Robin George Andrews, Quanta Magazine, 25 Apr. 2025

The team notes that the gases are chemically indistinguishable from gases present in volcanic rocks from Hawaiʻi, where volcanism is fueled by a mantle plume. —David Bressan, Forbes.com, 27 May 2025

Topology, volcanism, surface ages, rock types and the aforementioned thorium difference are just some of the differences that any hypothesis attempting to model the formation and subsequent evolution of the moon have to explain. —Keith Cooper, Space.com, 9 Apr. 2025

Word History

First Known Use

1830, in the meaning defined above

Rhymes for volcanism

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