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scoria

also scoriae

Quick answer

As a noun, scoria means the slag or dross that remains after the smelting of metal from an ore.

Meanings of scoria

3 meanings

The slag or dross that remains after the smelting of metal from an ore.
geologyRough masses of rock formed by solidified lava, and which can be found around a volcano's crater.
The scum formed by oxidation at the surface of molten metals
Similar: slag, dross

Meanings from Wiktionary (CC BY-SA 4.0) and Open English WordNet (CC BY 4.0).

noun: the scum formed by oxidation at the surface of molten metals

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Scrabble & Words With Friends: valid word8 points before bonuses.6 letters.