Definitions of slag

  1. A product of smelting, containing, mostly as silicates, the substances not sought to be produced as matte or metal, and having a lower specific gravity than the latter; -- called also, esp. in iron smelting, cinder. The slag of iron blast furnaces is essentially silicate of calcium, magnesium, and aluminium; that of lead and copper smelting furnaces contains iron. Webster Dictionary DB
  2. Same as Basic slag, above. Webster Dictionary DB
  3. The dross, or recrement, of a metal; also, vitrified cinders. Webster Dictionary DB
  4. The scoria of a volcano. Webster Dictionary DB
  5. the scum formed by oxidation at the surface of molten metals Scrapingweb Dictionary DB
  6. The dross of a melted metal; cinders; lava from a volcano. The Winston Simplified Dictionary. By William Dodge Lewis, Edgar Arthur Singer. Published 1919.
  7. Vitrified cinders from smelting-works, etc.: the scoriae of a volcano. The american dictionary of the english language. By Daniel Lyons. Published 1899.
  8. Dross; vitrified cinders. The Clarendon dictionary. By William Hand Browne, Samuel Stehman Haldeman. Published 1894.
  9. Metallic dross, as from ore; volcanic ashes. The Concise Standard Dictionary of the English Language. By James Champlin Fernald. Published 1919.
  10. The scoria or the dross of a metal; the scoria of a volcano. Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914.
  11. The dross or refuse from metallic ores after being smelted; vitrified cinders. Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.

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Usage examples for slag

  1. Yet do not make the mistake of thinking that it was slag or refuse humanity, such as camps in the narrow zone around the gates of Paris. – The French in the Heart of America by John Finley
  2. It was a black shaft smelling of coal, slag and burning things. – Atlantis by Gerhart Hauptmann