Source : Webster's Revised Unabridged Dictionary (1913)

Electroplate \E*lec"tro*plate`\, v. t. [imp. & p. p.
   {Electroplating}.] (Mech.)
   To plate or cover with a coating of metal, usually silver,
   nickel, or gold, by means of electrolysis.

Source : WordNet®

electroplate
     n : any artifact that has been plated with a thin coat of metal
         by electrolysis

electroplate
     v : coat with metal by electrolysis; "electroplate the watch"