• (British) IPA: /skɔːɹɪə/


  1. The slag or dross that remains after the smelting of metal from an ore. [from 14th c.]
    • 1837 Thomas Carlyle, The French Revolution: A History
      The like stuff is in Anacharsis Cloots: hot metal; full of scoriae, which should and could have been smelted out, but which will not.
  2. (geology) Rough masses of rock formed by solidified lava, and which can be found around a volcano's crater. [from 18th c.]
    • 2004, Richard Fortey, The Earth, Folio Society 2011, p. 10:
      An excellent guidebook by Drs Kilburn and McGuire of University College London reveals that these unpromising pieces of debris are scoria and lithic fragments of the March 1944 eruption.

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