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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The color of the aurora depends on which gas is being excited by the electrons and on how much energy is being exchanged, NASA said.
—
Jenna Prestininzi, Freep.com, 3 Sep. 2025
The findings challenge prior assumptions in solar physics and suggest that ions are heated far more intensely than electrons during solar flares.
—Melissa Fleur Afshar, MSNBC Newsweek, 3 Sep. 2025
The improved resolution of APS allows scientists to track electrons, ions, and atomic-level changes inside batteries.
—Atharva Gosavi, Interesting Engineering, 3 Sep. 2025
One of the aims of this was to discover why there often appears to be a lag in time between the launch of a solar flare or CME erupting from the sun and the release of SEEs into space, as these electrons sometimes take hours to escape the sun.
—Robert Lea, Space.com, 1 Sep. 2025
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Jenna Prestininzi, Freep.com, 3 Sep. 2025
The findings challenge prior assumptions in solar physics and suggest that ions are heated far more intensely than electrons during solar flares.
—Melissa Fleur Afshar, MSNBC Newsweek, 3 Sep. 2025
The improved resolution of APS allows scientists to track electrons, ions, and atomic-level changes inside batteries.
—Atharva Gosavi, Interesting Engineering, 3 Sep. 2025
One of the aims of this was to discover why there often appears to be a lag in time between the launch of a solar flare or CME erupting from the sun and the release of SEEs into space, as these electrons sometimes take hours to escape the sun.
—Robert Lea, Space.com, 1 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 9 Sep. 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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