nucleon vs baryon

nucleon and baryon both are nouns.

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

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

nucleon: a constituent (proton or neutron) of an atomic nucleus
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

Other hypernyms of nucleon include heavy particle.

nucleon (noun)	baryon (noun)
a constituent (proton or neutron) of an atomic nucleus	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