scoria

noun sco·ria \ ˈskȯr-ē-ə \

Definition of scoria

plural scoriae play \ˈskȯr-ē-ˌē, -ē-ˌī\
1 :the refuse from melting of metals or reduction of ores :slag
2 :rough vesicular cindery lava

scoriaceous

play \ˌskȯr-ē-ˈā-shəs\ adjective

Origin and Etymology of scoria

Middle English, from Latin, from Greek skōria, from skōr excrement — more at scatology


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