di·​o·​rite ˈdī-ə-ˌrīt How to pronounce diorite (audio)
: a granular crystalline igneous rock commonly of acid plagioclase and hornblende, pyroxene, or biotite
dioritic adjective

Examples of diorite in a Sentence

Recent Examples on the Web Made of blocks of red quartzite and gray diorite, the chapel housed the sacred bark of Amun when not in use for Opet or other festivals. National Geographic, 25 June 2019

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'diorite.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


French, irregular from Greek diorizein to distinguish, from dia- + horizein to define — more at horizon

First Known Use

1826, in the meaning defined above

Time Traveler
The first known use of diorite was in 1826

Dictionary Entries Near diorite

Cite this Entry

“Diorite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diorite. Accessed 25 Jul. 2024.

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