Standard Lemma guide

psilocin

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • General-American: /ˈsaɪ.ləˌsɪn/
  • General-American: /ˈsaɪ.loʊˌsɪn/
  • US: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

4-hydroxy-dimethyltryptamine, a hallucinogenic alkaloid found in most psychedelic mushrooms.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a hallucinogenic compound obtained from a mushroom

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: psilocybin

Antonyms: none provided

Broader terms: hallucinogen, hallucinogenic drug, psychedelic drug, psychodelic drug

History

Etymology

Blend of translingual Psilocybe + -in, from Ancient Greek ψιλός (psilós, “smooth”).