Main Entry: ful·gu·rite

Pronunciation: \ˈfu̇l-g(y)ə-ˌrīt, ˈfu̇l-jə-, ˈfəl-\

Function: noun

Etymology: International Scientific Vocabulary, from Latin fulgur

Date: 1834

: an often tubular vitrified crust produced by the fusion of sand or rock by lightning