plural scoriae
ˈskȯr-ē-ˌē 
-ē-ˌī
1
: the refuse from melting of metals or reduction of ores : slag
2
: rough vesicular cindery lava
Examples of scoria in a Sentence
Recent Examples on the Web
Volcanologists also warned of tephra, or hot glassy volcanic fragments, as well as volcanic ash, pumice, scoria and reticulite, which can fall on the ground within one to three miles of the eruptive vents.
—
Julia Jacobo, ABC News, 8 Dec. 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
In addition to the bright orange lava fountains that make for a dramatic spectacle and wildly shareable social media content, the eruption also sent ash and other material like scoria and so-called Pele’s hair nearly a mile into the atmosphere.
—Eric MacK, Forbes.com, 26 May 2025
AlaskaVeniaminof continues to be active in the Aleutian arc and the latest NASA Earth Observatory imagery (above) captures the small ash plume (and ash deposits) along with the small lava flow that continues to issue from the scoria cone within the main caldera.
—Erik Klemetti, Discover Magazine, 16 Aug. 2013
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Julia Jacobo, ABC News, 8 Dec. 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
In addition to the bright orange lava fountains that make for a dramatic spectacle and wildly shareable social media content, the eruption also sent ash and other material like scoria and so-called Pele’s hair nearly a mile into the atmosphere.
—Eric MacK, Forbes.com, 26 May 2025
AlaskaVeniaminof continues to be active in the Aleutian arc and the latest NASA Earth Observatory imagery (above) captures the small ash plume (and ash deposits) along with the small lava flow that continues to issue from the scoria cone within the main caldera.
—Erik Klemetti, Discover Magazine, 16 Aug. 2013
Cite this Entry
“Scoria.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/scoria. Accessed 26 Dec. 2025.
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