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

Examples of electron in a Sentence

Recent Examples on the Web A number of charging providers have begun to install stations around the country that can provide electrons at rates of up to 350kW for faster charging sessions. Andrew J. Hawkins, The Verge, 6 Feb. 2024 Essentially, one component uses ATP, an energy-carrying molecule, to funnel electrons into a second component. Matthew Hutson, The New Yorker, 6 Feb. 2024 In this state, electrons exhibited resistance orders of magnitude lower than in their original state, resembling superconducting behavior. IEEE Spectrum, 9 Jan. 2024 Nobody today knows what the right blend of electrons and molecules will be in a future clean energy system—which is one reason that the risks of transformation are so large and investors so far have backed only the most familiar options. Kassia Yanosek, Foreign Affairs, 29 Nov. 2023 This is due to the fact that when graphene is used in devices at very low temperatures, its electrons exhibit quantum-mechanical wavelike properties like those seen in light. IEEE Spectrum, 18 Jan. 2024 One example is an exotic property of electrons called the electric dipole moment, a small difference between the center of mass of an electron and its center of charge. Luke Caldwell, Scientific American, 16 Jan. 2024 When these ions and electrons slam into Earth’s atmosphere, they’re drawn to the north and south magnetic poles. Stephanie Vermillion, Vogue, 11 Dec. 2023 Since electrons move more slowly, the battery can’t accept as much electricity from a charging plug. Tom Krisher, Fortune, 17 Jan. 2024 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'electron.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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

Dictionary Entries Near electron

Cite this Entry

“Electron.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/electron. Accessed 25 Feb. 2024.

Kids Definition

electron

noun
elec·​tron i-ˈlek-ˌträn How to pronounce electron (audio)
: an elementary particle that has a negative charge of electricity and travels around the nucleus of an atom

Medical Definition

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 9.109534 × 10−28 gram or about ¹/₁₈₃₆ that of a proton

More from Merriam-Webster on electron

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!