fer·​mi·​on | \ˈfer-mē-ˌän, ˈfər-\

Definition of fermion 

: a particle (such as an electron, proton, or neutron) whose spin quantum number is an odd multiple of ¹/₂ — compare boson

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Other Words from fermion

fermionic \ˌfer-​mē-​ˈä-​nik, ˌfər-​ \ adjective

Examples of fermion in a Sentence

Recent Examples on the Web

The quasiparticles produced here, called Majorana fermions, are their own antimatter. Shannon Palus, Discover Magazine, "Electrons ‘Split’ in New Form of Matter," 22 Dec. 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fermion.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of fermion

1947, in the meaning defined above

History and Etymology for fermion

Enrico Fermi + English -on entry 2

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Time Traveler for fermion

The first known use of fermion was in 1947

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Rhyming Dictionary: Words that rhyme with fermion

Britannica.com: Encyclopedia article about fermion

Comments on fermion

What made you want to look up fermion? Please tell us where you read or heard it (including the quote, if possible).


a knickknack or trinket

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