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vulcanism

[vuhl-kuh-niz-uh m]
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noun Geology.
  1. volcanism.

Origin of vulcanism

First recorded in 1875–80; variant of volcanism
Related formsvul·can·ist, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for vulcanism

Historical Examples

  • Thus as we travel up the rich valleys leading from the Columbia to either peak, we meet everywhere the phenomena of vulcanism.

    The Guardians of the Columbia

    John H. (John Harvey) Williams

  • Not all the striking effects of vulcanism belong to the remote geologic past.


British Dictionary definitions for vulcanism

vulcanism

noun
  1. a variant of volcanism
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012