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TOEFL BNC: 4252 COCA: 5566

electron

electron ˈlɛkˌtrɑːn/ noun
plural electrons
electron
ˈlɛkˌtrɑːn/
noun
plural electrons
Learner's definition of ELECTRON
[count] physics
: a very small particle of matter that has a negative charge of electricity and that travels around the nucleus of an atom电子
TOEFL BNC: 4252 COCA: 5566

electron

noun

elec·​tron i-ˈlek-ˌträn How to pronounce electron (audio)
: 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

Example Sentences

Recent Examples on the Web 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 These are quantities, such as the speed of light or the mass of the electron, which physicists have determined do not change over time throughout the universe. Sophia Chen, Wired, 2 Aug. 2022 The raw materials are free and inexhaustible, so the price of an electron made from solar or wind is not subject to wide daily fluctuations. Tim Mcdonnell, Quartz, 28 July 2022 In an electrical circuit, the electron condensate in a wire is like water flowing through a pipe. Sumeet Kulkarni, Los Angeles Times, 2 July 2022 But by carefully controlling the trajectory of the electron, the experimenters should be able to nullify this potential interference—a process that Sudhir likens to throwing an invisibility cloak over the particle. Joanna Thompson, Scientific American, 20 May 2022 See More

Word History

Etymology

electr- + -on entry 2

First Known Use

1891, in the meaning defined above

Time Traveler
The first known use of electron was in 1891
TOEFL BNC: 4252 COCA: 5566

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