kaon

Definition

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.

Example Sentences

• "K⁰: strange quark + down antiquark"
• "K (antiparticle of K⁰): down quark + strange antiquark"
• "K⁺: strange quark + up antiquark"