Meaning & use
Scoria
Last updated
A rough, dark, porous volcanic rock formed from cooled fragments of lava.
See it in a sentence
The trail was covered in loose scoria that crunched underfoot.
Scoria cones form quickly from explosive eruptions of gas-rich basaltic lava.
A note on using this word
From the Greek "skoria," meaning "refuse" or "slag," originally referring to metal-smelting waste before being applied to volcanic rock.
Words with a similar meaning
cindervolcanic rock
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