andesite

noun

an·​des·​ite ˈan-di-ˌzīt How to pronounce andesite (audio)
: an extrusive usually dark grayish rock consisting essentially of oligoclase or feldspar
andesitic
ˌan-di-ˈzi-tik How to pronounce andesite (audio)
adjective

Examples of andesite in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Featuring lots of timber and indigenous andesite stone, their low profiles create intimate communal spaces. — Kathryn Romeyn, Travel + Leisure, 23 Jan. 2025 Much of the area around the caldera is covered by basaltic andesite lava flows related to the magmatic system at Newberry, erupting as fissures and cinder cones along faults that cross the area. — Erik Klemetti, Discover Magazine, 17 June 2024

Word History

Etymology

German Andesit, from Andes

First Known Use

1837, in the meaning defined above

Time Traveler
The first known use of andesite was in 1837

Rhymes for andesite

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Browse Nearby Words

andesinite
andesite
and everything
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Cite this Entry

“Andesite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/andesite. Accessed 28 Apr. 2025.

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Kids Definition

andesite

noun
an·​des·​ite ˈan-di-zīt How to pronounce andesite (audio)
: a usually dark grayish rock of feldspar that is formed from lava
andesitic
ˌan-di-ˈzit-ik How to pronounce andesite (audio)
adjective

More from Merriam-Webster on andesite

Britannica.com: Encyclopedia article about andesite

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