volcanic glass

noun

: natural glass produced by the cooling of molten lava too rapidly to permit crystallization

Examples of volcanic glass in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Pele’s hair is strands of volcanic glass that can cluster together and look like tumbleweeds. Eduardo Cuevas, USA Today, 27 May 2025 That plume included ash, volcanic rock and volcanic glass shards known as Pele's hair. Kerry Breen, CBS News, 26 May 2025 There are even some lava fountains that can create lots of volcanic ash (volcanic glass fragments). Erik Klemetti, Discover Magazine, 12 May 2025 Read More | Ancient artifacts made of volcanic glass keep turning up in Canada. Stories By Real-Time News Team, With Ai Summarization, Miami Herald, 11 Apr. 2025 See All Example Sentences for volcanic glass

Word History

First Known Use

1780, in the meaning defined above

Time Traveler
The first known use of volcanic glass was in 1780

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Cite this Entry

“Volcanic glass.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/volcanic%20glass. Accessed 3 Jun. 2025.

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