thioridazine

T1H4I1O1R1I1D2A1Z10I1N1E1
UK/ˌθʌɪ.ə(ʊ).ɹɪˈdeɪ.ziːn/US/ˌθaɪ.əˈɹɪd.əˌziːn/

noun

A synthetic compound derived from phenothiazine, used as a tranquillizer, chiefly in the treatment of mental illness.

Similar
Mellaril
OriginEnglish (phenothi)azine ← Latin piper ← Ancient Greek πέπερῐ (péperĭ) →
UncommonScrabble 25
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Meanings

nounthioridazine (countable and uncountable, plural thioridazines)

plural thioridazines

  1. countableuncountablemedicineA synthetic compound derived from phenothiazine, used as a tranquillizer, chiefly in the treatment of mental illness.

Synonyms & antonyms

nouna tranquilizer (trade name Mellaril) used to treat schizophrenia and other psychotic disorders

Similar
Mellaril
Broader
major tranquilizermajor tranquillizermajor tranquilliser

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Proto-Indo-European*dʰewh₂-der.?
  2. Ancient Greekθέειον (théeion)
  3. Ancient Greekθεῖον (theîon)
  4. Englishthio-
  5. Ancient Greekπέπερῐ (péperĭ)
  6. Latinpiper
  7. English(pipe)rid(ine)
  8. English(phenothi)azine
  9. Englishthioridazine

From thio- + (pipe)rid(ine) + (phenothi)azine.

Full word history & related roots →
Cite this entry
APA

thioridazine. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/thioridazine

MLA

“thioridazine.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/thioridazine. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “thioridazine,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/thioridazine.

Source: thioridazine on Wiktionary, CC BY-SA 4.0.