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]
E*lec`tro*poi"on(?), n., or
Electropoion fluid. [NL.; electro- + Gr. poiw^n, p. pr. of poiei^n to make.] (Elec.) An exciting and depolarizing acid solution used in certain cells or batteries, as the Grenet battery. Electropoion is best prepared by mixing one gallon of concentrated sulphuric acid diluted with three gallons of water, with a solution of six pounds of potassium bichromate in two gallons of boiling water. It should be used cold.
[Webster 1913 Suppl.]
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