pyroxenite

noun

py·​rox·​e·​nite pī-ˈräk-sə-ˌnīt How to pronounce pyroxenite (audio)
pə-
: an igneous rock that is free from olivine and is composed essentially of pyroxene
pyroxenitic adjective

Word History

First Known Use

1845, in the meaning defined above

Time Traveler
The first known use of pyroxenite was in 1845

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Cite this Entry

“Pyroxenite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pyroxenite. Accessed 6 Jul. 2026.

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