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Definition of supervolcano

supervolcano

/ˌsuːpərvɑːlˈkeɪnoʊ/
su · per · vol · ca · no
Plural:supervolcanoes
•
Adjective:supervolcanic
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supervolcano Lexical Profile

supervolcano Game Scores & Validity

• noun

1

A massive volcanic center capable of producing an eruption of magnitude 8 on the Volcanic Explosivity Index, ejecting more than 1,000 cubic kilometers of magma and ash and typically forming a vast caldera rather than a conical mountain.

Example

"Geologists monitor seismic activity beneath the Yellowstone caldera, one of the best-known supervolcanoes in the world."

Synonyms
View all synonyms for supervolcano

• Rhymes for supervolcano

• Nearby Words

supervision
supervisor
supervisory
supervolcano
superweapon
superweed
superwide

Word Origin & Etymology

Coined in the mid-20th century by geologists and popularized in 2000 by the BBC science documentary program Horizon, combining the prefix 'super-' with 'volcano' (ultimately from Latin Volcanus, the Roman god of fire).

Cite this Entry

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