The Collaborative International Dictionary of English v.0.48:

Electroplate \E*lec"tro*plate`\, v. t. [imp. & p. p.
   Electroplating.] (Mech.)
   To plate or cover with a coating of metal, usually silver,
   nickel, chromium, or gold, by means of electrolysis.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

electroplating \e*lec"tro*pla`ting\, n.
   The art or process of depositing a coating (commonly) of
   silver, gold, or nickel on an inferior metal, by means of an
   electric current. The metal to be deposited on an article is
   usually used as the anode and the article to be plated as the
   cathode, in an electrolyte solution in which the plating
   metal is the cation. The process is conducted in a tank
   called an electroplating bath, which holds the electrolyte
   solution.
   [1913 Webster +PJC] Electropoion

Moby Thesaurus II by Grady Ward, 1.0:

22 Moby Thesaurus words for "electroplating":
   anion, anodized aluminum, cation, chromium plate, copperplate,
   electrocoating, electroetching, electrogalvanization,
   electrogilding, electrograving, electrolysis, electrolyte,
   galvanization, gold plate, ion, ionization, ionogen, nickel plate,
   nonelectrolyte, plate, plating, silver plate