an·​des·​ite | \ ˈan-di-ˌzīt How to pronounce andesite (audio) \

Definition of andesite

: an extrusive usually dark grayish rock consisting essentially of oligoclase or feldspar

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Other Words from andesite

andesitic \ ˌan-​di-​ˈzi-​tik How to pronounce andesitic (audio) \ adjective

Examples of andesite in a Sentence

Recent Examples on the Web

The main cone is made of andesite, dacite, and rhyodacite. Jennifer Earl, Fox News, "Hawaii's Kilauea volcano ranked among top 10 most dangerous in US," 16 May 2018

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

First Known Use of andesite

1837, in the meaning defined above

History and Etymology for andesite

German Andesit, from Andes

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Time Traveler for andesite

The first known use of andesite was in 1837

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More from Merriam-Webster on andesite

Rhyming Dictionary: Words that rhyme with andesite Encyclopedia article about andesite

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appealing forcibly to the mind or reason

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