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PSHE
psi (1)
psi (2)
psi particle
psia
psid
psig
psilocin
psilocybin
psilomelane
psilophyte
psilopsid
psittacine
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psilocybin
psil·o·cy·bin [ sìllə sbin, slə sbin ]


noun 
Definition:
 
hallucinogen: a crystalline hallucinogen obtained from a specific mushroom. C13HN2O3P2
[Mid-20th century. < Greek psilos "smooth" + kubē "head"]
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