psilocybin

[sil-uh-sahy-bin, sahy-luh-]

noun Pharmacology.

a hallucinogenic crystalline solid, C12H17N2O4P, obtained from the mushroom Psilocybe mexicana.

Origin of psilocybin

1955–60; < New Latin Psilocyb(e) genus of mushrooms (< Greek psīló(s) bare + kýbē head) + -in²

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for psilocybin

Contemporary Examples of psilocybin

It lasts several hours longer than either MDMA or psilocybin, and it has the greatest risk profile of any psychedelic.
Is LSD Good for You?
Paul Schrodt
August 19, 2009

Historical Examples of psilocybin

It is common to have a bad psychological reaction to LSD, mescaline, and psilocybin.
What Works: Schools Without Drugs
United States Department of Education
Lysergic acid (LSD), mescaline, and psilocybin cause illusions and hallucinations.
What Works: Schools Without Drugs
United States Department of Education

British Dictionary definitions for psilocybin

psilocybin

noun

a crystalline phosphate ester that is the active principle of the hallucinogenic fungus Psilocybe mexicana. Formula: C 12 H 17 N 2 O 4 P

Word Origin for psilocybin

C20: from New Latin Psilocybe (from Greek psilos bare + kubē head) + -in

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for psilocybin

1958, from Modern Latin psilocybe, name of a Central American species of mushroom, from Greek psilos "bare" (see psilo-) + kybe "head."

psilocybin in Medicine