electrolysis

noun
elec·​trol·​y·​sis | \i-ˌlek-ˈträ-lə-səs \

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

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 This will protect the electrical connects from corrosion and electrolysis. Timothy Dahl, Popular Mechanics, "How to Waterproof Your Cordless Power Tools," 27 Jan. 2016 Seawater chemistry In electrolysis, a device powered by electricity is used to split H2O, producing hydrogen gas. Scott K. Johnson, Ars Technica, "Splitting water for fuel while removing CO₂ from the air," 28 June 2018 The process using photo catalysts is the best option for space travel as the equipment weighs much less than the one needed for electrolysis. Charles W. Dunnill, Scientific American, "Method of Making Oxygen from Water in Zero Gravity Raises Hope for Long-Distance Space Travel," 10 July 2018 This is possible using a process known as electrolysis, which involves running a current through a water sample containing some soluble electrolyte. Charles W. Dunnill, Scientific American, "Method of Making Oxygen from Water in Zero Gravity Raises Hope for Long-Distance Space Travel," 10 July 2018 For example, one method uses special membrane filters to separate the hydrogen and hydroxide ions produced during electrolysis. Scott K. Johnson, Ars Technica, "Splitting water for fuel while removing CO₂ from the air," 28 June 2018 Carbon Engineering wants to make very low-carbon fuels, with a process powered by renewables, using CO2 from the air, drawing hydrogen from electrolysis. David Roberts, Vox, "Sucking carbon out of the air won’t solve climate change," 14 June 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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Last Updated

12 Dec 2018

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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 \

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 \
plural electrolyses\-​ˌsēz \

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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