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 The peer reviewed paper demonstrates that Quantum Motion has been able to isolate and measure the quantum state of a single electron for a period of nine seconds on a CMOS chip. Adrian Bridgwater, Forbes, 13 May 2021 According to Bohr’s formulas, an electron circling the nucleus of an atom will somehow leap from one fixed orbit to another, as if by magic, seeming not to exist between leaps. John Banville, WSJ, 28 May 2021 What researchers measure is the energy spectrum of the electron. Don Lincoln, Forbes, 18 May 2021 For example, if an electron and an antielectron appear near the warp drive, one of the particles would get trapped by the mass and this results in an imbalance. Mario Borunda, The Conversation, 23 Apr. 2021 Thus, weak force interactions will happen either more or less, depending on the electron’s spin. Don Lincoln, Forbes, 7 May 2021 For decades, physicists have measured the magnetism of the muon, a heavier, unstable cousin of the electron, which behaves like a tiny bar magnet. Adrian Cho, Science | AAAS, 7 Apr. 2021 Researchers can create quasiparticles that have a precise fraction of the electron’s charge or spin (a kind of intrinsic angular momentum). Quanta Magazine, 24 Mar. 2021 Muons are ephemeral subatomic particles, much like the more familiar electron. Don Lincoln, Forbes, 7 Apr. 2021

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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Time Traveler for electron

Time Traveler

The first known use of electron was in 1891

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Statistics for electron

Last Updated

13 Jun 2021

Cite this Entry

“Electron.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/electron. Accessed 23 Jun. 2021.

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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

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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