: a dark gray to black dense to fine-grained igneous rock that consists of basic plagioclase, augite, and usually magnetite
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Tucked away in south-central Washington, about 145 miles southeast of Seattle, the Yakima Valley stretches across fertile farmland framed by rolling hills, basalt ridges, and the winding Yakima River.
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Vivian Chung, Travel + Leisure, 23 Nov. 2025
Its poplar wood core and basalt laminate deliver a stable ride and lively rebound while its Cork Damplifier absorbs all chatter.
—Outside, 13 Nov. 2025
The samples included mafic Archaean rocks derived from the Hadean–Eoarchaean mantle (including samples from Isua, Nuvvuagittuq, and the Kaapvaal Craton) and certain modern ocean island basalts (from La Réunion Island and Kama’ehuakanaloa volcano, Hawaii).
—Pranjal Malewar, New Atlas, 3 Nov. 2025
The brow of the mountain represents Budj Bim’s forehead, the sharp basalt scoria rocks are the giant’s teeth, and the lava flows are his blood, which poured over the land.
—Literary Hub, 22 Oct. 2025
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Vivian Chung, Travel + Leisure, 23 Nov. 2025
Its poplar wood core and basalt laminate deliver a stable ride and lively rebound while its Cork Damplifier absorbs all chatter.
—Outside, 13 Nov. 2025
The samples included mafic Archaean rocks derived from the Hadean–Eoarchaean mantle (including samples from Isua, Nuvvuagittuq, and the Kaapvaal Craton) and certain modern ocean island basalts (from La Réunion Island and Kama’ehuakanaloa volcano, Hawaii).
—Pranjal Malewar, New Atlas, 3 Nov. 2025
The brow of the mountain represents Budj Bim’s forehead, the sharp basalt scoria rocks are the giant’s teeth, and the lava flows are his blood, which poured over the land.
—Literary Hub, 22 Oct. 2025
See All Example Sentences for basalt
Cite this Entry
“Basalt.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/basalt. Accessed 30 Nov. 2025.
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: a dark gray to black usually fine-grained igneous rock
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