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fulgurite

noun

fulgurite is a noun meaning “Glass formed by a lightning strike melting sand or other material” (English Wiktionary, September 2026). It is spelled F-U-L-G-U-R-I-T-E, and it appears about once in every 93 million words in written English (wordfreq, 2021 data). The plural of fulgurite is fulgurites.

What does fulgurite mean?

noun

  1. 1

    Glass formed by a lightning strike melting sand or other material.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Forms of fulgurite

  • fulgurites plural

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How common is fulgurite?

Fulgurite appears about once in every 93 million words in written English, the 309,272nd most frequent word form in the list.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

Fulgurite in Spanish, French, German and Portuguese

In the sense glass formed by lightning:

LanguageWords
Frenchfulgurite
Portuguesefulgurito
Spanishfulgurita

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.

Where does fulgurite come from?

From Latin fulgur + -ite.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).