volcanism

[ vol-kuh-niz-uh m ]
/ ˈvɒl kəˌnɪz əm /

noun Geology.

the phenomena connected with volcanoes and volcanic activity.
Also vulcanism.

Origin of volcanism

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

Example sentences from the Web for volcanism

  • Volcanoes and volcanism are not restricted to the planet Earth.

    Volcanoes |Robert I. Tilling

British Dictionary definitions for volcanism

volcanism

vulcanism

/ (ˈvɒlkəˌnɪzəm) /

noun

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