# psilocybin

> English word · Noun · IPA /ˌsɪ.ləˈsaɪ.bɪn/ · frequency rank #54,416

## Definitions
1. A hallucinogenic alkaloid, C₁₂H₁₅N₂O·H₂PO₃, present in several species of Central American mushroom and producing effects similar to LSD. The prodrug of psilocin.

## Etymology
Borrowed from German Psilocybin (coined by Albert Hofmann), from translingual Psilocybe (“genus of mushroom”) + -in.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/psilocybin