baryon vs hadron

baryon and hadron both are nouns.

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

As nouns, hadron is a hypernym of baryon; that is, hadron is a word with a broader meaning than baryon:

baryon: any of the elementary particles having a mass equal to or greater than that of a proton and that participate in strong interactions; a hadron with a baryon number of +1
hadron: any elementary particle that interacts strongly with other particles

Other hypernyms of baryon include fermion.

baryon (noun)	hadron (noun)
any of the elementary particles having a mass equal to or greater than that of a proton and that participate in strong interactions; a hadron with a baryon number of +1	any elementary particle that interacts strongly with other particles