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vulcanism

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vul⋅can⋅ism

[vuhl-kuh-niz-uhm]
–noun Geology.
volcanism.

Origin:
1875–80; var. of volcanism


vul⋅can⋅ist, noun

vol⋅can⋅ism

[vol-kuh-niz-uhm]
–noun Geology.
the phenomena connected with volcanoes and volcanic activity.
Also, vulcanism.


Origin:
1865–70; volcan(o) + -ism
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To vulcanism
vol·ca·nism   (vŏl'kə-nĭz'əm)   
n.  
  1. Volcanic force or activity.

  2. The phenomena associated with volcanic activity.

vul·ca·nism   (vŭl'kə-nĭz'əm)   
n.  Variant of volcanism.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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