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thiopentone Line breaks: thio|pen¦tone
Pronunciation: /ˌθʌɪə(ʊ)ˈpɛntəʊn/

Definition of thiopentone in English:


[mass noun] Medicine
A sulphur-containing barbiturate drug used as a general anaesthetic and hypnotic, and (reputedly) as a truth drug.
Example sentences
  • I have injected the antibiotic cefuroxime, thinking it was the anaesthetic thiopentone.
  • The use of induction agents, such as thiopentone, and muscle relaxants when a patient's airway reflexes are still present, can counteract these effects.
  • Inhibition of neutrophil respiratory burst and chemotaxis in vitro by thiopentone but not methohexitone


1940s: from thio- + a contraction of pentobarbitone.

Definition of thiopentone in:
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