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Vulcanism

Vulcanism may refer to

  • Volcanism or volcanic activity.
  • Plutonism, a scientific theory of the Earth.
Wiktionary

vulcanism

n. (alternative spelling of volcanism English)

The Collaborative International Dictionary

Vulcanism

Vulcanism \Vul"can*ism\, n. Volcanism.

Usage examples of "vulcanism".

Marglot was developing its own planetary ring, a disk of hot ejecta expelled by violent vulcanism.

Twenty years ago, the now-moist Venerean clouds had parted briefly, and a decade-long rain had fallen, driving the planet's surface acids into chemical battle with molten rock thrown up by three centuries of fresh vulcanism.