pentaquark

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{lb|en|particle}} Any of a class of [[subatomic particle]]s (previously hypothetical, since detected, subject to confirmation) consisting of a group of five [[quark]]s (compared to three quarks in normal [[baryon]]s and two in [[meson]]s), or more specifically four quarks and one [[antiquark]] (symbol [[Θ]]).

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