electron

noun
elec·​tron | \ i-ˈlek-ˌträn How to pronounce electron (audio) \

Definition of electron

: an elementary particle consisting of a charge of negative electricity equal to about 1.602 × 10−19 coulomb and having a mass when at rest of about 9.109 × 10−31 kilogram or about ¹/₁₈₃₆ that of a proton

Examples of electron in a Sentence

Recent Examples on the Web

Instead of applying fearsome heat and pressure, reverse fuel cells make ammonia by deftly wrangling ions and electrons. Robert F. Service, Science | AAAS, "Ammonia—a renewable fuel made from sun, air, and water—could power the globe without carbon," 12 July 2018 An electron’s willingness to jiggle is highly dependent on the combination of its environment and the wavelength of the light causing it to jiggle. Chris Lee, Ars Technica, "Gas jets make beautiful lens for light we can’t normally focus," 21 Dec. 2018 Free radicals are unstable and highly reactive molecules that steal electrons from other sources, damaging cells in the process. Jenn Sinrich, SELF, "The Best Antioxidants for Skin, According to Dermatologists," 8 Nov. 2018 This sometimes allows electrons to spread out and travel, or tunnel, through materials in ways that would be forbidden to particles under the rules of classical physics. Tim Folger, Discover Magazine, "How Quantum Mechanics Lets Us See, Smell and Touch," 24 Oct. 2018 Slack developer Felix Rieseberg is responsible for this glorious app, allowing nostalgia lovers to play around with Windows 95 in an electron app. Tom Warren, The Verge, "Windows 95 is now an app you can download and install on macOS, Windows, and Linux," 23 Aug. 2018 One type of plasma wave, known as a chorus wave, causes electrons in plasma to accelerate. Chelsea Gohd, Space.com, "Jupiter's Largest Moon Ganymede Produces Powerful Plasma Waves," 8 Aug. 2018 In its 15-year run, MiniBooNE has registered a few hundred more electron neutrinos than expected. Natalie Wolchover, Washington Post, "Evidence for a new fundamental particle thrills and baffles physicists," 18 June 2018 The manufacturer would also have to demonstrate that the product is asbestos-free using a transmission electron microscopy method. Ann Zaniewski, Detroit Free Press, "Dangerous kids' makeup must carry warnings, new proposal requires," 7 Feb. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'electron.' 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 electron

1891, in the meaning defined above

History and Etymology for electron

electr- + -on entry 2

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Statistics for electron

Last Updated

11 Mar 2019

Look-up Popularity

Time Traveler for electron

The first known use of electron was in 1891

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More Definitions for electron

electron

noun

English Language Learners Definition of electron

physics : a very small particle of matter that has a negative charge of electricity and that travels around the nucleus of an atom

electron

noun
elec·​tron | \ i-ˈlek-ˌträn How to pronounce electron (audio) \

Kids Definition of electron

: a very small particle that has a negative charge of electricity and travels around the nucleus of an atom

electron

noun
elec·​tron | \ i-ˈlek-ˌträn How to pronounce electron (audio) \

Medical Definition of electron

: an elementary particle consisting of a charge of negative electricity equal to about 1.602 × 10−19 coulomb and having a mass when at rest of about 9.109534 × 10−28 gram or about ¹/₁₈₃₆ that of a proton

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More from Merriam-Webster on electron

Rhyming Dictionary: Words that rhyme with electron

Spanish Central: Translation of electron

Nglish: Translation of electron for Spanish Speakers

Britannica English: Translation of electron for Arabic Speakers

Britannica.com: Encyclopedia article about electron

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