Slagging

from 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.]
    

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