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 The equipment needed for the beginning of the process—transferring a drawing onto a metal pattern by means of a glass plate, wax and electrolysis—had been lost. The Economist, "Setting type How the world’s old printing presses are being brought back to life," 18 Dec. 2019 With green hydrogen, water is heated through electrolysis to produce hydrogen. Benjamin Storrow, Scientific American, "Can A Big Oil Company Go Carbon-Free?," 6 Dec. 2019 By electrolysis -- sending an electric current through water to split hydrogen atoms from oxygen. William Wilkes, Washington Post, "How ‘Green Hydrogen’ Could Make ‘Green Steel’ Real," 23 Nov. 2019 Getting hydrogen from electrolysis rather than SMR is more expensive, at least today, for the simple reason that natural gas tends to be cheaper than electricity. David Roberts, Vox, "Sucking carbon out of the air won’t solve climate change," 14 June 2018 Costs are expected to tumble as electrolysis technology becomes more efficient and production is scaled up. William Wilkes, Washington Post, "How ‘Green Hydrogen’ Could Make ‘Green Steel’ Real," 23 Nov. 2019 Last month, in Dresden, Germany, a company called Sunfire completed a test run of a high-temperature electrolysis reactor, known as a solid-oxide fuel cell, that promises even higher efficiency than PEM electrolyzers. Robert F. Service, Science | AAAS, "Can the world make the chemicals it needs without oil?," 19 Sep. 2019 The foam core acts a conductor, and the nickel-iron hydroxide starts the electrolysis. David Grossman, Popular Mechanics, "Scientists Are Now Transforming Saltwater Into Hydrogen Fuel," 20 Mar. 2019 The bulk of the power would be used to run desalination and electrolysis equipment. Megan Geuss, Ars Technica, "Creative thinking: Researchers propose solar methanol island using ocean CO₂," 6 June 2019

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.

See More

First Known Use of electrolysis

1834, in the meaning defined at sense 1a

Keep scrolling for more

Learn More about electrolysis

Time Traveler for electrolysis

Time Traveler

The first known use of electrolysis was in 1834

See more words from the same year

Statistics for electrolysis

Last Updated

26 Dec 2019

Cite this Entry

“Electrolysis.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/electrolysis. Accessed 28 January 2020.

Keep scrolling for more

More Definitions for electrolysis

electrolysis

noun
How to pronounce electrolysis (audio)

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

Keep scrolling for more

More from Merriam-Webster on electrolysis

Spanish Central: Translation of electrolysis

Nglish: Translation of electrolysis for Spanish Speakers

Britannica.com: Encyclopedia article about electrolysis

Comments on electrolysis

What made you want to look up electrolysis? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

showing steady, earnest care and effort

Get Word of the Day daily email!

Test Your Vocabulary

January 2020 Words of the Day Quiz

  • image1642096650
  • Which is a synonym of bonhomie?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Add Diction

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!