: a dark gray to black dense to fine-grained igneous rock that consists of basic plagioclase, augite, and usually magnetite
Examples of basalt in a Sentence
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Millions of years ago, the Yakima River carved its way through basalt lava flows to form the Yakima River Canyon.
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Terry Ward, Travel + Leisure, 17 June 2026
The setting was a lush landscape of rice paddies, red basalt soil, the golden sands of the South China Sea beaches and bamboo thickets.
—Pavlo Fedykovych, CNN Money, 12 June 2026
At its entrance, monumental basalt sculptures lean precariously against 14th-century walls, reversing the traditional role of the caryatid and quietly speaking to visitors.
—Y-Jean Mun-Delsalle, Forbes.com, 10 June 2026
The material combines recycled PETG with basalt fiber reinforcement.
—Kaif Shaikh, Interesting Engineering, 26 May 2026
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Terry Ward, Travel + Leisure, 17 June 2026
The setting was a lush landscape of rice paddies, red basalt soil, the golden sands of the South China Sea beaches and bamboo thickets.
—Pavlo Fedykovych, CNN Money, 12 June 2026
At its entrance, monumental basalt sculptures lean precariously against 14th-century walls, reversing the traditional role of the caryatid and quietly speaking to visitors.
—Y-Jean Mun-Delsalle, Forbes.com, 10 June 2026
The material combines recycled PETG with basalt fiber reinforcement.
—Kaif Shaikh, Interesting Engineering, 26 May 2026
See All Example Sentences for basalt
Cite this Entry
“Basalt.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/basalt. Accessed 20 Jun. 2026.
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: a dark gray to black usually fine-grained igneous rock
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