psilocyn vs hallucinogen

psilocyn and hallucinogen both are nouns.

Word	Noun	Adjective	Verb	Adverb
psilocyn	Yes	No	No	No
hallucinogen	Yes	No	No	No

As nouns, hallucinogen is a hypernym of psilocyn; that is, hallucinogen is a word with a broader meaning than psilocyn:

psilocyn: a substituted tryptamine alkaloid and a serotonergic psychedelic substance, present in most psychedelic mushrooms together with its phosphorylated counterpart psilocybin.
hallucinogen: a psychoactive drug that induces hallucinations or altered sensory experiences

Other hypernyms of psilocyn include hallucinogenic drug, psychedelic drug, psychodelic drug, alkaloid.

psilocyn (noun)	hallucinogen (noun)
a substituted tryptamine alkaloid and a serotonergic psychedelic substance, present in most psychedelic mushrooms together with its phosphorylated counterpart psilocybin.	a psychoactive drug that induces hallucinations or altered sensory experiences