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Showing results for electrolysis. Search instead for electrolysing.

electrolysis

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

noun

  1. 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.

  2. the destruction of hair roots, tumors, etc., by an electric current.


electrolysis British  
/ ɪlɛkˈtrɒlɪsɪs /

noun

  1. the conduction of electricity by a solution or melt, esp the use of this process to induce chemical changes

  2. the destruction of living tissue, such as hair roots, by an electric current, usually for cosmetic reasons

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of electrolysis

First recorded in 1830–40; electro- + -lysis

Vocabulary lists containing electrolysis

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Within these enclosed environments, breathable oxygen could be produced through photosynthesis or water electrolysis.

From Science Daily Jul. 17, 2026

Newer seawater electrolysis research continues to focus on the same bottlenecks: corrosion resistant materials, long lasting electrodes, chlorine suppression, and system designs that can survive real seawater rather than ideal laboratory solutions.

From Science Daily May 10, 2026

While not all hydrogen production methods are eco-friendly, it is possible to make "green hydrogen" through a process called electrolysis - where electricity from renewable sources is used to split water into hydrogen and oxygen.

From BBC Apr. 21, 2026

There is a cleaner production process available through electrolysis, but supply chains to do that don’t exist yet.

From Barron's Nov. 18, 2025

It heats C02 to 900°C, then passes it over a zirconia electrolysis cell to yank the carbon atoms off.

From "The Martian" by Andy Weir

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