fermion
noun
fer·mi·on
ˈfer-mē-ˌän 
ˈfər-
: a particle (such as an electron, proton, or neutron) whose spin quantum number is an odd multiple of ¹/₂ compare boson
Examples of fermion in a Sentence
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However, if neutrinos and antineutrinos aren’t Dirac fermions but are actually Majorana particles, then an atomic nucleus that was unstable against double beta decay could actually exhibit two different types of double beta decay.
—
Big Think, 28 Oct. 2025
Beyond electrons, the quarks that make up protons and neutrons in atomic nuclei are also fermions.
—Matt Von Hippel, Quanta Magazine, 23 June 2025
When packed together, fermions cannot be compressed past a certain point.
—Shalma Wegsman, Wired News, 25 May 2025
That one harnesses Majorana fermions to create topological qubits that are designed to store information in a way that’s inherently protected against many types of errors.
—New Atlas, 28 Feb. 2025
See All Example Sentences for fermion
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Big Think, 28 Oct. 2025
Beyond electrons, the quarks that make up protons and neutrons in atomic nuclei are also fermions.
—Matt Von Hippel, Quanta Magazine, 23 June 2025
When packed together, fermions cannot be compressed past a certain point.
—Shalma Wegsman, Wired News, 25 May 2025
That one harnesses Majorana fermions to create topological qubits that are designed to store information in a way that’s inherently protected against many types of errors.
—New Atlas, 28 Feb. 2025
See All Example Sentences for fermion
Cite this Entry
“Fermion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fermion. Accessed 31 Oct. 2025.
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