DuckCorp Dico

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1.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   Arc \Arc\ ([aum]rk), v. i. [imp. & p. p. Arcked ([aum]rkt); p.
      pr. & vb. n. Arcking.] (Elec.)
      To form a voltaic arc, as an electrical current in a broken
      or disconnected circuit.
      [Webster 1913 Suppl.]