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Definition of volcanism

volcanism

/ˈvɒlkənɪzəm/
(UK: vulcanism)
vol · ca · nism
Adverb:volcanically
•
Adjective:volcanic
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volcanism Lexical Profile

volcanism Game Scores & Validity

• noun

1

The geological phenomena and processes associated with volcanoes, volcanic activity, and the eruption of molten rock, pyroclastic materials, and volcanic gases onto the surface of a planet or moon.

Example

"The Hawaiian Islands were formed over millions of years by hotspot volcanism beneath the Pacific Plate."

Synonyms
View all synonyms for volcanism

• Nearby Words

volatile
volatility
volcanic
volcanism
volcano
vole
volga

Word Origin & Etymology

Coined in the mid-19th century from 'volcano' (ultimately from Latin Vulcanus, the Roman god of fire and metalworking) combined with the suffix '-ism'.

Cite this Entry

Wordmom. (2026). Definition of Volcanism. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/volcanism
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