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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Denver Post via Getty Images Consumers seeking the therapeutic benefits of psilocybin in Oregon edibles may instead be ingesting unlisted synthetic psychedelics and extracts, a recent study warns.
—
Benjamin Adams, Forbes.com, 16 Sep. 2025
That would be weird and probably an indication that your microdose of psilocybin had turned into a macrodose.
—Brian Moylan, Vulture, 12 Sep. 2025
Afterward, investigators searched a Golden Valley storage unit that Estrada had rented under a false name and seized three bags of white powder, seven bags of psilocybin mushrooms, three bags of marijuana and a bag of meth, according to a search warrant affidavit.
—Nick Ferraro, Twin Cities, 11 Sep. 2025
These centers receive psilocybin from licensed growers, whose products are tested by a licensed laboratory.
—Allison Parshall, Scientific American, 11 Sep. 2025
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Benjamin Adams, Forbes.com, 16 Sep. 2025
That would be weird and probably an indication that your microdose of psilocybin had turned into a macrodose.
—Brian Moylan, Vulture, 12 Sep. 2025
Afterward, investigators searched a Golden Valley storage unit that Estrada had rented under a false name and seized three bags of white powder, seven bags of psilocybin mushrooms, three bags of marijuana and a bag of meth, according to a search warrant affidavit.
—Nick Ferraro, Twin Cities, 11 Sep. 2025
These centers receive psilocybin from licensed growers, whose products are tested by a licensed laboratory.
—Allison Parshall, Scientific American, 11 Sep. 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 20 Sep. 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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