di·​o·​rite | \ ˈdī-ə-ˌrīt How to pronounce diorite (audio) \

Definition of diorite

: a granular crystalline igneous rock commonly of acid plagioclase and hornblende, pyroxene, or biotite

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Other Words from diorite

dioritic \ ˌdī-​ə-​ˈri-​tik How to pronounce dioritic (audio) \ 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, "Egypt’s pharaohs welcomed summer with this fabulous festival," 25 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'diorite.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of diorite

1826, in the meaning defined above

History and Etymology for diorite

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

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Time Traveler for diorite

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The first known use of diorite was in 1826

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Cite this Entry

“Diorite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diorite. Accessed 30 Nov. 2020.

More from Merriam-Webster on diorite

Britannica.com: Encyclopedia article about diorite

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