fulgurite

noun

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ful·gu·rite | \ ˈfu̇l-g(y)ə-ˌrīt

, 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, 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, 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.