volcanism

[ vol-kuh-niz-uhm ]

Phonetic (Standard)IPA

noun

, Geology.

volcanism

/ ˈvɒlkəˌnɪzəm /

those processes collectively that result in the formation of volcanoes and their products

First recorded in 1865–70; volcan(o) + -ism

Volcanoes and volcanism are not restricted to the planet Earth.

Lassen Peak, some wise men believe, is the last exhibit of activity in the dying volcanism of the Cascade Mountains.

Thus, active volcanism is taking place, at present, on at least one planetary body in addition to our Earth.

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