vul·​ca·​nism | \ ˈvəl-kə-ˌni-zəm How to pronounce vulcanism (audio) \

Definition of vulcanism

Examples of vulcanism in a Sentence

Recent Examples on the Web According to paleobiologist Jessica Whiteside of Brown University, a leading researcher on end-Triassic vulcanism, more evidence is needed before Ruhl’s interpretations are conclusively supported. Brandon Keim, WIRED, "Mass Extinction Easier to Trigger Than Thought," 21 July 2011

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'vulcanism.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of vulcanism

1863, in the meaning defined above

Keep scrolling for more

Learn More about vulcanism

Time Traveler for vulcanism

Time Traveler

The first known use of vulcanism was in 1863

See more words from the same year

Statistics for vulcanism

Cite this Entry

“Vulcanism.” Dictionary, Merriam-Webster, Accessed 26 May. 2020.

More from Merriam-Webster on vulcanism

Rhyming Dictionary: Words that rhyme with vulcanism Encyclopedia article about vulcanism

Comments on vulcanism

What made you want to look up vulcanism? Please tell us where you read or heard it (including the quote, if possible).


See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

Obscure Shapes

  • a pile of three dimensional shapes in green
  • Something that is ooid is shaped like:
Spell It

Can you spell these 10 commonly misspelled words?

Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!