Definition of fulgurite
: an often tubular vitrified crust produced by the fusion of sand or rock by lightning
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Recent Examples of fulgurite from the Web
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If the soil composition is right, something called a fulgurite can also be created — fused soil that looks like coral.
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.
Origin and Etymology of fulgurite
International Scientific Vocabulary, from Latin fulgur
Learn More about fulgurite
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Britannica.com: Encyclopedia article about fulgurite
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