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 To visualize an isometric change, though, let the universe of this electron swell just enough to allow a third position. Charlie Wood, Quanta Magazine, 26 Sep. 2022 The team was able to analyze the meteorite with the help of electron microscopy and advanced synchrotron techniques, which built maps of the space object’s components, including lonsdaleite, diamond and graphite, according to the study. Madeline Holcombe, CNN, 16 Sep. 2022 Using basic principles, physicists have been able to calculate the color of the sky, the detailed orbits of planets, the strength of magnetism in an electron, and many other phenomena. Alan Lightman, The Atlantic, 8 Sep. 2022 The message was encoded by mechanically interposing or not interposing a three-inch block of brass in the muon beam every time a 12-billion-electron-volt synchrotron at the Argonne National Laboratory emitted a short burst of particles. Mark Fischetti, Scientific American, 1 Sep. 2022 The rolling Appalachian terrain threatened to eat every last electron, yet the Lucid covered the stretch with 6 percent of its battery capacity left. David Beard, Car and Driver, 18 Aug. 2022 While the glorious fuel-burning S1 was reported to produce 750 horsepower in its unfettered form, the new racer packs its performance in a most tidy electron-spewing package. Basem Wasef, Robb Report, 15 Aug. 2022 This disturbance at the electron level means that those atoms also produce an electromagnetic wave. Wired, 13 Aug. 2022 The electron capture detector, arguably one of the most important analytical instruments developed during the 20th century, was redesigned and commercialized by Hewlett-Packard without any royalty or licensing agreement with Dr. Lovelock. New York Times, 27 July 2022 See More

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.

First Known Use of electron

1891, in the meaning defined above

History and Etymology for electron

electr- + -on entry 2

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Time Traveler for electron

Time Traveler

The first known use of electron was in 1891

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Dictionary Entries Near electron

electromyograph

electron

electron affinity

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Statistics for electron

Last Updated

29 Sep 2022

Cite this Entry

“Electron.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/electron. Accessed 4 Oct. 2022.

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More Definitions for electron

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

More from Merriam-Webster on 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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