volcanism

English

Alternative forms

Etymology

From French volcanisme, from volcan (“volcano”); and/or directly from volcan(o) +‎ -ism.

Noun

volcanism (countable and uncountable, plural volcanisms)

  1. (volcanology) Any of the natural phenomena and processes associated with the action of volcanos, geysers and fumaroles
    Synonym: volcanicity
    Hyponym: cryovolcanism
    • 2004, Peter Morrison Vitousek, Nutrient Cycling and Limitation: Hawai'i as a Model System‎[1], →ISBN, page 12:
      This rejuvenation-stage or post-erosional volcanism produces lava even more alkalic than late-stage volcanism.

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