volcanism
vol·ca·nism
noun
1.
the phenomena associated with volcanic activity
Origin
From French volcanisme, from volcan (“volcano”); and/or directly from volcan(o) + -ism.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.