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
Recent Examples on the Web
One element was, if anyone takes psilocybin mushrooms, there’s always a feeling of another presence there, or something watching you.
—
Roxana Hadadi, Vulture, 31 Mar. 2025
In 2023, the Legislature passed a bill to decriminalize the personal use of psilocybin mushrooms and other psychedelics.
—Grant Stringer, The Mercury News, 25 Mar. 2025
Adverse effects of psilocybin, including headache and nausea, typically resolve within one to two days.
—Kate Ruder | Kff Health News, ABC News, 24 Mar. 2025
Randal Vance bragged about giving children microdoses of psilocybin and encouraged other people to do the same, prosecutors said.
—Julia Marnin, Sacramento Bee, 21 Mar. 2025
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Roxana Hadadi, Vulture, 31 Mar. 2025
In 2023, the Legislature passed a bill to decriminalize the personal use of psilocybin mushrooms and other psychedelics.
—Grant Stringer, The Mercury News, 25 Mar. 2025
Adverse effects of psilocybin, including headache and nausea, typically resolve within one to two days.
—Kate Ruder | Kff Health News, ABC News, 24 Mar. 2025
Randal Vance bragged about giving children microdoses of psilocybin and encouraged other people to do the same, prosecutors said.
—Julia Marnin, Sacramento Bee, 21 Mar. 2025
See All Example Sentences for psilocybin
Cite this Entry
“Psilocybin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/psilocybin. Accessed 16 Apr. 2025.
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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