electron
noun
elec·tron
i-ˈlek-ˌträn 
: 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
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Soon thereafter, beta particles were identified as electrons, bringing these two independent aspects of reality together.
—
Ethan Siegel, Big Think, 30 Sep. 2025
The word describes what happens when electrons are coerced to spin in tandem, as opposed to spinning in opposite directions, which is the default state of most electrons most of the time.
—Andre Mouchard, Oc Register, 28 Sep. 2025
Could prove revolutionary for photonics This new material could be very useful in things like photonics, where computing and devices that use light (photons) instead of electricity (electrons) are used.
—Christopher McFadden, Interesting Engineering, 27 Sep. 2025
For the pair of galaxies, the hot gas cloud of ionized gas, filled with free electrons and which stretches for millions of light years around the cluster is like tumbling into a vat of treacle that then begins to scour the gas on the leading edge of the infalling galaxies, ablating it.
—Keith Cooper, Space.com, 25 Sep. 2025
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Ethan Siegel, Big Think, 30 Sep. 2025
The word describes what happens when electrons are coerced to spin in tandem, as opposed to spinning in opposite directions, which is the default state of most electrons most of the time.
—Andre Mouchard, Oc Register, 28 Sep. 2025
Could prove revolutionary for photonics This new material could be very useful in things like photonics, where computing and devices that use light (photons) instead of electricity (electrons) are used.
—Christopher McFadden, Interesting Engineering, 27 Sep. 2025
For the pair of galaxies, the hot gas cloud of ionized gas, filled with free electrons and which stretches for millions of light years around the cluster is like tumbling into a vat of treacle that then begins to scour the gas on the leading edge of the infalling galaxies, ablating it.
—Keith Cooper, Space.com, 25 Sep. 2025
See All Example Sentences for electron
Cite this Entry
“Electron.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/electron. Accessed 4 Oct. 2025.
Copy CitationKids Definition
electron
noun
elec·tron
i-ˈlek-ˌträn
: 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
: 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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