electrolysis

noun
elec·​trol·​y·​sis | \ i-ˌlek-ˈträ-lə-səs How to pronounce electrolysis (audio) \

Definition of electrolysis

1a : the producing of chemical changes by passage of an electric current through an electrolyte
b : subjection to this action
2 : the destruction of hair roots by an electrologist using direct current

Examples of electrolysis in a Sentence

She had electrolysis done on her upper lip.

Recent Examples on the Web

Ionized water has been put through an electrical process called electrolysis (not to be confused with the hair-removal treatment with the same name). Christy Brissette, Washington Post, "Is alkaline water really better for you?," 28 Aug. 2019 Another permanent option: electrolysis, which uses concentrated heat to destroy each follicle one at a time to prohibit hairs from growing. Sam Escobar, Good Housekeeping, "8 Gentle and Effective Ways to Remove Facial Hair," 17 Aug. 2018 These convert basic table salt into chlorine with electrolysis, so the salt is electronically charged. Hadley Keller, House Beautiful, "Should You Put a Natural Swimming Pool In Your Backyard?," 6 May 2019 Namely, hydrogen is difficult to store, and making it a truly zero-emissions source of fuel requires renewable electricity to perform water electrolysis. Megan Geuss, Ars Technica, "First hydrogen-powered train hits the tracks in Germany," 20 Sep. 2018 It was first codified by British scientific legend Michael Faraday, whose two laws of electrolysis from 1834 still guide scientists today. David Grossman, Popular Mechanics, "Scientists Are Now Transforming Saltwater Into Hydrogen Fuel," 20 Mar. 2019 The hydrogen itself can be produced by running this process in reverse, which is called electrolysis. Avery Thompson, Popular Mechanics, "Where Are All the Hydrogen Cars?," 10 Aug. 2018 However, hydrogen can be created through water electrolysis, using renewable energy as an electricity input. Megan Geuss, Ars Technica, "California’s cap-and-trade dollars are building a hydrogen fuel cell boat," 8 Nov. 2018 But abundant electricity from wind power, especially at night when demand for electricity in general is low, could be used to stimulate water electrolysis, a process that could make green hydrogen. Megan Geuss, Ars Technica, "International Energy Agency predicts wind will dominate Europe’s grid by 2027," 28 Sep. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'electrolysis.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of electrolysis

1834, in the meaning defined at sense 1a

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Statistics for electrolysis

Last Updated

5 Sep 2019

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Time Traveler for electrolysis

The first known use of electrolysis was in 1834

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More Definitions for electrolysis

electrolysis

noun

English Language Learners Definition of electrolysis

: the process of removing unwanted hair by killing the hair root with an electric current
chemistry : the process of separating a liquid into its different chemical parts by passing an electric current through it

electrolysis

noun
elec·​trol·​y·​sis | \ i-ˌlek-ˈträ-lə-səs How to pronounce electrolysis (audio) \

Kids Definition of electrolysis

: the producing of chemical changes by passage of an electric current through a liquid

electrolysis

noun
elec·​trol·​y·​sis | \ i-ˌlek-ˈträl-ə-səs How to pronounce electrolysis (audio) \
plural electrolyses\ -​ˌsēz How to pronounce electrolyses (audio) \

Medical Definition of electrolysis

1a : the process of producing chemical changes by passage of an electric current through an electrolyte
b : subjection to this action
2 : the destruction of hair roots by an electrologist by means of an electric current applied to the body with a needle-shaped electrode

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More from Merriam-Webster on electrolysis

Spanish Central: Translation of electrolysis

Nglish: Translation of electrolysis for Spanish Speakers

Britannica.com: Encyclopedia article about electrolysis

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