[ih-lek-trol-uh-sis, ee-lek-] /ɪ lɛkˈtrɒl ə sɪs, ˌi lɛk-/

Physical Chemistry. the passage of an electric current through an electrolyte with subsequent migration of positively and negatively charged ions to the negative and positive electrodes.
the destruction of hair roots, tumors, etc., by an electric current.
the conduction of electricity by a solution or melt, esp the use of this process to induce chemical changes
the destruction of living tissue, such as hair roots, by an electric current, usually for cosmetic reasons

1834, introduced by Faraday on the suggestion of the Rev. William Whewell (1794-1866), English polymath, from electro- + Greek lysis “a loosening,” from lyein “to loosen, set free” (see lose). Originally of tumors, later (1909) of hair removal.

electrolysis e·lec·trol·y·sis (ĭ-lěk-trŏl’ĭ-sĭs, ē’lěk-)

A process in which a chemical change, especially decomposition, is brought about by passing an electric current through a solution of electrolytes so that the electrolyte’s ions move toward the negative and positive electrodes and react with them. If negative ions move toward the anode, they lose electrons and become neutral, resulting in an oxidation reaction. This also happens if atoms of the anode lose electrons and go into the electrolyte solution as positive ions. If positive ions move toward the cathode and gain electrons, becoming neutral, a reduction reaction takes place. Electrolysis is used for many purposes, including the extraction of metals from ores, the cleaning of archaeological artifacts, and the coating of materials with thin layers of metal (electroplating).
electrolysis [(i-lek-trol-uh-sis)]

In chemistry, any process that brings about a chemical reaction by passing electric current through a material.

Note: The most common form of electrolysis is electroplating, in which a thin coat of metal is deposited on a solid object.


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