ful·​gu·​rite | \ ˈfu̇l-g(y)ə-ˌrīt How to pronounce fulgurite (audio) , ˈfu̇l-jə-, ˈfəl- \

Definition of fulgurite

: an often tubular vitrified crust produced by the fusion of sand or rock by lightning

Examples of fulgurite in a Sentence

Recent Examples on the Web That means the lightning strikes initiate a geological stopwatch the moment a fulgurite is created. Nikk Ogasa, Science | AAAS, "Fossilized lightning bolts reveal when ancient storms struck," 16 Dec. 2020 If the soil composition is right, something called a fulgurite can also be created — fused soil that looks like coral. Joaquin Palomino, San Francisco Chronicle, "Dozens of PG&E equipment problems reported as Wine Country fires began," 26 Jan. 2018

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

First Known Use of fulgurite

1823, in the meaning defined above

History and Etymology for fulgurite

International Scientific Vocabulary, from Latin fulgur

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The first known use of fulgurite was in 1823

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Last Updated

22 Dec 2020

Cite this Entry

“Fulgurite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fulgurite. Accessed 26 Jan. 2021.

More from Merriam-Webster on fulgurite

Britannica.com: Encyclopedia article about fulgurite

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