# J/psi meson

> English word · Noun · IPA /ˌdʒeɪ ˈsaɪ ˈmiːzɒn/

## Definitions
1. Synonym of J/psi particle.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/j-psi-meson