Standard Lemma guide

chlorpromazine

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: /klɔːˈpɹəʊ.məz.ɪn/
  • Received-Pronunciation: /klɔːˈpɹəʊ.məz.iːn/
  • General-American: /klɔɹˈpɹɑm.əˌziːn/
  • General-American: /klɔɹˈpɹoʊ.məˌziːn/

1

noun

Meaning 1

A synthetic antipsychotic drug, with the chemical formula C17H19ClN2S.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: medicine, pharmacology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: aminazine, Largacti, Thorazine

Antonyms: none provided

2

noun

Meaning 2

a drug (trade name Thorazine) derived from phenothiazine that has antipsychotic effects and is used as a sedative and tranquilizer

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Thorazine

Antonyms: none provided

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

History

Etymology

Borrowed from French chloropromazine. By surface analysis, chlor- + promazine. First attested in the 1950s.

Across languages

Translations

7 source translations are retained for this English entry.

  • French: chlorpromazine — synthetic drug
  • German: Chlorpromazin — synthetic drug
  • Hungarian: klórpromazin — synthetic drug
  • Italian: clorpromazina — synthetic drug
  • Portuguese: cloropromazina — synthetic drug
  • Portuguese: clorpromazina — synthetic drug
  • Spanish: clorpromazina — synthetic drug