# kaon

> English word · Noun · IPA /ˈkeɪˌɑn/

## Definitions
1. any of four unstable subatomic particles, mesons, they are a combination of a strange quark or antiquark and either an up or down quark or antiquark

## Etymology
From contracted pronunciation of K-meson.

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