fermion

Fetched 2026-10-26 (cache).

Synonyms: fermin

Antonyms: fermin

Related words from Datamuse; suggestions, not definitions.

Noun

1. {{lb|en|particle physics|[[Standard Model]]}} Any [[elementary]] or [[composite]] [[particle]] that has half-integer [[spin]] and thus obeys [[wikipedia:Fermi–Dirac_statistics|Fermi–Dirac statistics]] and the [[Pauli exclusion principle]] (''equivalently'', a particle for which the [[wavefunction]] of any system of identical such particles changes sign whenever two are swapped); a [[baryon]], a [[lepton]] or a [[quark]];<br>{{lb|en|slightly more loosely}} any such particle or any composite particle composed of fermions.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.