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Definition of Fulgurite
1. n. A vitrified sand tube produced by the striking of lightning on sand; a lightning tube; also, the portion of rock surface fused by a lightning discharge.
Definition of Fulgurite
1. Noun. glass formed by a lightning strike melting sand or other material ¹
¹ Source: wiktionary.com
Definition of Fulgurite
1. [n -S]