mull·​ite ˈmə-ˌlīt How to pronounce mullite (audio)
: a mineral that is an orthorhombic silicate of aluminum which is resistant to corrosion and heat and is used as a refractory

Word History


Mull, island of the Inner Hebrides

First Known Use

1924, in the meaning defined above

Time Traveler
The first known use of mullite was in 1924

Dictionary Entries Near mullite

Cite this Entry

“Mullite.” Dictionary, Merriam-Webster, Accessed 1 Apr. 2023.

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