py·​ro·​phyl·​lite ˌpī-rō-ˈfi-ˌlīt How to pronounce pyrophyllite (audio) pī-ˈrä-fə-ˌlīt How to pronounce pyrophyllite (audio)
: a soft usually white or greenish mineral that is a hydrous aluminum silicate, resembles talc, occurs in a foliated form or in compact masses, and is used especially in ceramic wares

Word History


German Pyrophyllit, from Greek pyr- + phyllon leaf — more at blade

First Known Use

1830, in the meaning defined above

Time Traveler
The first known use of pyrophyllite was in 1830

Dictionary Entries Near pyrophyllite

Cite this Entry

“Pyrophyllite.” Dictionary, Merriam-Webster, Accessed 21 Mar. 2023.

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