Standard Lemma guide

haloperidol

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

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  • Received-Pronunciation: /ˌhæ.lə(ʊ)ˈpɛ.ɹɪ.dɒl/
  • Received-Pronunciation: /ˌheɪ.lə(ʊ)-/
  • General-American: /ˌhæ.loʊˈpɛ.ɹɪˌdɔl/
  • rhymes with -ɛɹɪdɒl

1

noun

Meaning 1

A synthetic antidepressant drug, with the chemical formula C21H23ClFNO2, used in the treatment of psychotic conditions.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: medicine, pharmacology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: haldol

Antonyms: none provided

2

noun

Meaning 2

tranquilizer (trade name Haldol) used to treat some psychotic disorders and Tourette's syndrome

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Haldol

Antonyms: none provided

Broader terms: major tranquilizer, major tranquillizer, major tranquilliser, antipsychotic drug, antipsychotic agent, antipsychotic, neuroleptic drug, neuroleptic agent, neuroleptic

History

Etymology

From halo- + (pi)perid(ine) + -ol. By surface analysis, halo- + -peridol.

Across languages

Translations

2 source translations are retained for this English entry.

  • Portuguese: haloperidol — pharmaceutical drug
  • Spanish: haloperidol — pharmaceutical drug