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1. A hallucinogenic compound obtained from a mushroom
   - psilocybin
    
2. A substituted tryptamine alkaloid and a serotonergic psychedelic substance, present in most psychedelic mushrooms together with its phosphorylated counterpart psilocybin.
   "The mind-altering effects of psilocin are highly variable and subjective and resemble those of LSD and DMT.";
   - psilocyn, psilotsin, psilocine

Derived forms: psilocins

Type of: alkaloid, hallucinogen, hallucinogenic drug, psychedelic drug, psychodelic drug

Encyclopedia: Psilocin