psilocybin
noun
psi·lo·cy·bin
ˌsī-lə-ˈsī-bən 
: a hallucinogenic indole C12H17N2O4P obtained from a fungus (such as Psilocybe mexicana or P. cubensis synonym Stropharia cubensis)
Examples of psilocybin in a Sentence
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Having additional revenue streams beyond the psilocybin offerings could benefit Vivid Minds in an industry where expenses are extraordinary.
—
Tiney Ricciardi, Denver Post, 18 Mar. 2026
No, Colorado didn’t legalize retail sales of psilocybin Much of the confusion among wholesalers and consumers stems from Colorado’s 2022 Natural Medicine Act.
—David Kroll, The Conversation, 17 Mar. 2026
Andrey Lopez is facing eight charges related to selling, possessing and delivering drugs, including marijuana, psilocybin and an opioid, his arrest report read.
—Devoun Cetoute, Miami Herald, 14 Mar. 2026
Around the same time, researchers at Johns Hopkins gave volunteers psilocybin, the active component in hallucinogenic mushrooms, to study its psychological effects.
—Clayton Dalton, New Yorker, 13 Mar. 2026
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Tiney Ricciardi, Denver Post, 18 Mar. 2026
No, Colorado didn’t legalize retail sales of psilocybin Much of the confusion among wholesalers and consumers stems from Colorado’s 2022 Natural Medicine Act.
—David Kroll, The Conversation, 17 Mar. 2026
Andrey Lopez is facing eight charges related to selling, possessing and delivering drugs, including marijuana, psilocybin and an opioid, his arrest report read.
—Devoun Cetoute, Miami Herald, 14 Mar. 2026
Around the same time, researchers at Johns Hopkins gave volunteers psilocybin, the active component in hallucinogenic mushrooms, to study its psychological effects.
—Clayton Dalton, New Yorker, 13 Mar. 2026
See All Example Sentences for psilocybin
Cite this Entry
“Psilocybin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/psilocybin. Accessed 21 Mar. 2026.
Copy CitationKids Definition
psilocybin
noun
psi·lo·cy·bin
ˌsī-lə-ˈsī-bən
: a chemical that is obtained from a fungus and causes hallucinations
Medical Definition
psilocybin
noun
psi·lo·cy·bin
ˌsī-lə-ˈsī-bən
: a hallucinogenic indole C12H17N2O4P obtained from a basidiomycetous fungus (as Psilocybe mexicana or P. cubensis synonym Stropharia cubensis)
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Merriam-Webster unabridged
