mesotron vs meson

mesotron and meson both are nouns.

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

As nouns, mesotron and meson are synonyms defined as:

mesotron and meson: an elementary particle responsible for the forces in the atomic nucleus; a hadron with a baryon number of 0

mesotron (noun)	meson (noun)
an elementary particle responsible for the forces in the atomic nucleus; a hadron with a baryon number of 0	an elementary particle responsible for the forces in the atomic nucleus; a hadron with a baryon number of 0