K-meson; kaon
Technical term in particle physics; refers to a meson containing a strange quark.
The K-meson is a type of meson that contains a strange quark.
In this experiment, we observed the decay of kaons.
Standard notation in physics; the Latin letter K is used as a symbol.
Kana spelling of the K symbol; sometimes used when Latin letters are avoided.
From English 'K-meson' or 'kaon', where 'K' stands for 'K-meson' and 粒子 means 'particle'. The term was coined in particle physics.