pion
Fetched 2026-10-26 (cache).
Datamuse reports no synonyms or antonyms for this word.
Noun
- {{lb|en|particle}} Any of three [[semistable]] [[meson]]s, having positive, negative or neutral charge, composed of [[up]] and [[down]] [[quark|quarks]]/[[antiquark|antiquarks]]. <!-- either π<sup>0</sup>, a neutral form with a mass 264 times that of an [[electron]], or π<sup>+</sup> or π<sup>—</sup>, a [[charge]]d form with a mass 273 times that of an electron.
Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.