[1] : The Collaborative International Dictionary of English v.0.48

slag \slag\, v. i.  t. imp.  p. p. slagged; p. pr.  vb. n.
   slagging. metal.
   to form, or form into, a slag; to agglomerate when heated
   below the fusion point.
   webster 1913 suppl.
see also:
slagged slagging 

[2] : The Collaborative International Dictionary of English v.0.48

slag \slag\ sla^g, n. sw. slagg, or lg. slacke, whence g.
   schlacke; originally, perhaps, the splinters struck off from
   the metal by hammering. see slay, v. t.
   1. the dross, or recrement, of a metal; also, vitrified
      cinders.
      1913 webster

   2. the scoria of a volcano.
      1913 webster

   3. metal. 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 1913 suppl.

   slag furnace, or slag hearth metal., a furnace, or
      hearth, for extracting lead from slags or poor ore.

   slag wool, mineral wool. see under mineral.
      1913 webster
see also:
slay cinder slag furnace slag hearth slag wool mineral 

[3] : WordNet (r) 2.0

slag
     n : the scum formed by oxidation at the surface of molten metals
         syn: scoria, dross
     also: slagging, slagged
see also:
scoria dross slagging slagged 

[4] : Moby Thesaurus II by Grady Ward, 1.0

81 moby thesaurus words for "slag":
   alluvion, alluvium, ash, ashes, bones, brand, calx, carbon, chaff,
   charcoal, cinder, clinker, coal, coke, coom, culm, deadwood,
   deposition, deposits, diluvium, dishwater, draff, dregs, dross,
   dust, ember, feces, filings, froth, fume, garbage, gash, grounds,
   hogwash, husks, lava, leavings, lees, loess, moraine, offal,
   offscourings, offscum, orts, parings, potsherds, precipitate,
   precipitation, rags, raspings, reek, refuse, scoria, scourings,
   scrap iron, scraps, scum, sediment, settlings, shards, shavings,
   silt, sinter, slack, slop, slops, smoke, smudge, smut, soot,
   stubble, sublimate, sullage, sweepings, swill, tares, wastage,
   waste, waste matter, wastepaper, weeds

Slag >> S Words
Slag, definition of term: Slag
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