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
Approximately 12%, or 31.5 million American adults, have used psilocybin or LSD over their lifetime, according to a 2024 report by RAND Corporation, a research think tank.
—
Sandee Lamotte, CNN, 3 Mar. 2025
Related Articles First psilocybin therapy center applications roll in as Colorado prepares for industry launch this spring
Colorado Springs finally approved recreational marijuana.
—Tiney Ricciardi, The Denver Post, 27 Jan. 2025
However, there was also a mixture of other substances, including a synthetic version of psilocybin, the prescription anticonvulsant drug pregabalin and the supplement kava.
—Will Stone, NPR, 21 Dec. 2024
The treatment group received a 25mg dose of synthesized psilocybin, while the control group was given 100mg of niacin.
—Christine Clarridge, Axios, 5 Dec. 2024
See All Example Sentences for psilocybin
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Sandee Lamotte, CNN, 3 Mar. 2025
Related Articles First psilocybin therapy center applications roll in as Colorado prepares for industry launch this spring
Colorado Springs finally approved recreational marijuana.
—Tiney Ricciardi, The Denver Post, 27 Jan. 2025
However, there was also a mixture of other substances, including a synthetic version of psilocybin, the prescription anticonvulsant drug pregabalin and the supplement kava.
—Will Stone, NPR, 21 Dec. 2024
The treatment group received a 25mg dose of synthesized psilocybin, while the control group was given 100mg of niacin.
—Christine Clarridge, Axios, 5 Dec. 2024
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 Mar. 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)
Love words? Need even more definitions?
Merriam-Webster unabridged
Share