kappa-meson vs mesotron

kappa-meson and mesotron both are nouns.

Word	Noun	Adjective	Verb	Adverb
kappa-meson	Yes	No	No	No
mesotron	Yes	No	No	No

As nouns, mesotron is a hypernym of kappa-meson; that is, mesotron is a word with a broader meaning than kappa-meson:

kappa-meson: an unstable meson produced as the result of a high-energy particle collision
mesotron: an elementary particle responsible for the forces in the atomic nucleus; a hadron with a baryon number of 0

Other hypernyms of kappa-meson include meson.

kappa-meson (noun)	mesotron (noun)
an unstable meson produced as the result of a high-energy particle collision	an elementary particle responsible for the forces in the atomic nucleus; a hadron with a baryon number of 0