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fulgurite

noun
ful·​gu·​rite | \ ˈfu̇l-g(y)É™-ËŒrÄ«t How to pronounce fulgurite (audio) , ˈfu̇l-jÉ™-, ˈfÉ™l-\

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

 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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More from Merriam-Webster on fulgurite

Britannica.com: Encyclopedia article about fulgurite

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