hadron vs mesotron

hadron and mesotron both are nouns.

Word	Noun	Adjective	Verb	Adverb
hadron	Yes	No	No	No
mesotron	Yes	No	No	No

As nouns, mesotron is a hyponym of hadron; that is, mesotron is a word with a more specific, narrower meaning than hadron:

hadron: any elementary particle that interacts strongly with other particles
mesotron: an elementary particle responsible for the forces in the atomic nucleus; a hadron with a baryon number of 0

Other hyponyms of hadron include antibaryon, antimeson, baryon, heavy particle, meson.

hadron (noun)	mesotron (noun)
any elementary particle that interacts strongly with other particles	an elementary particle responsible for the forces in the atomic nucleus; a hadron with a baryon number of 0