scoria

/ˈskɔriə/
IPA guide

Other forms: scoriae

Definitions of scoria
  1. noun
    the scum formed by oxidation at the surface of molten metals
    synonyms: dross, slag
    see moresee less
    types:
    basic slag
    slag produced in making steel; low in silica but having large amounts of calcium phosphate; useful as fertilizer
    type of:
    scum
    a film of impurities or vegetation that can form on the surface of a liquid
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