neph·​e·​line ˈne-fə-ˌlēn How to pronounce nepheline (audio)
variants or less commonly nephelite
: a hexagonal mineral that is a usually glassy crystalline silicate of sodium, potassium, and aluminum common in igneous rocks
nephelinic adjective

Word History


French néphéline, from Greek nephelē cloud — more at nebula

First Known Use

circa 1814, in the meaning defined above

Time Traveler
The first known use of nepheline was circa 1814

Dictionary Entries Near nepheline

Cite this Entry

“Nepheline.” Dictionary, Merriam-Webster, Accessed 25 Mar. 2023.

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