mullite
noun
mullite is a noun meaning “An orthorhombic-dipyramidal mineral containing aluminum, oxygen, and silicon” (English Wiktionary, September 2026). It is spelled M-U-L-L-I-T-E, and it appears about once in every 74 million words in written English (wordfreq, 2021 data). The plural of mullite is mullites.
What does mullite mean?
noun
- 1
An orthorhombic-dipyramidal mineral containing aluminum, oxygen, and silicon.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of mullite
- mullites plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is mullite?
Mullite appears about once in every 74 million words in written English, the 272,462nd 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).
Where does mullite come from?
Named for type locality Mull (Scotland) + -ite.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).