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
Recent Examples on the Web
Doing so causes electrons to split the bonds in the iron ore to purify it while outputting only oxygen.
—
Michael Franco, New Atlas, 13 Mar. 2025
Using X-rays and electron microscopy, a new study revealed that three artifacts — a bracelet, an ankle ring, and a pin — contain an even rarer kind of iron obtained from a meteorite.
—David Bressan, Forbes, 25 Feb. 2025
As a result, the state of the electrons in the wire influenced the capacitance of the quantum dot.
—John Timmer, Ars Technica, 19 Feb. 2025
To get the monomers to link together, a lone electron – or free radical – initiates a bond with a monomer, triggering a chain reaction.
—Aaron Priester, The Conversation, 19 Feb. 2025
See All Example Sentences for electron
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Michael Franco, New Atlas, 13 Mar. 2025
Using X-rays and electron microscopy, a new study revealed that three artifacts — a bracelet, an ankle ring, and a pin — contain an even rarer kind of iron obtained from a meteorite.
—David Bressan, Forbes, 25 Feb. 2025
As a result, the state of the electrons in the wire influenced the capacitance of the quantum dot.
—John Timmer, Ars Technica, 19 Feb. 2025
To get the monomers to link together, a lone electron – or free radical – initiates a bond with a monomer, triggering a chain reaction.
—Aaron Priester, The Conversation, 19 Feb. 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 17 Mar. 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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share