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

This is the ease with which its atoms can shed electrons. The Economist, "A team of chemists are searching for a new red pigment," 11 July 2019 As far back as the late 1960s, physicists had tried to explain the existence of fundamental particles — electrons, photons, quarks — in terms of minuscule vibrating strings. Quanta Magazine, "Mathematicians Explore Mirror Link Between Two Geometric Worlds," 9 Apr. 2018 The teams used a method called cryo-electron microscopy, an imaging technique that won its developers the Nobel prize last year. Jason Daley, Smithsonian, "Herpes Is Kind of Beautiful, On the Molecular Level," 6 Apr. 2018 The hope is that some of the neutrinos made at Fermilab will strike the nucleus of an argon atom, releasing a burst of light and a cascade of electrons that scientists can track. Nathaniel Scharping, Discover Magazine, "Why Fermilab is Making A Neutrino Detector 800 Miles Long," 12 Mar. 2019 Coulombic efficiency is a measure of how well electrons are transferred through the system. Megan Geuss, Ars Technica, "Researchers propose a cheap nickel-hydrogen battery for grid storage," 31 Oct. 2018 That kind of electricity is based on electrons: negatively charged particles flowing in a current. Sally Adee, Quartz, "Our bodies are full of electricity that could help us fight cancer," 30 May 2019 Scientists discovered in 1912 that subatomic particles — the building blocks of matter, such as protons, electrons, muons, neutrinos, and quarks — hit the Earth every day. Brian Resnick, Vox, "10 science stories in 2018 that made us go, “Whoa, that’s awesome”," 18 Dec. 2018 Its clever direct-drive gearbox and arrangement of motors and clutches help propel the car partially, or solely, on electrons, and the integration of all the pieces is seamless. Car and Driver, "2019 10Best Cars," 28 Nov. 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

15 Jul 2019

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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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