Definition of thiopentone in English:
 thiopentone
noun ˌθʌɪə(ʊ)ˈpɛntəʊnˌTHīōˈpentōn
mass nounBritish Medicine A sulphur-containing barbiturate drug used as a general anaesthetic and hypnotic, and (reputedly) as a truth drug.
North American term thiopental
Also called Pentothal (a trademark)
 Example sentencesExamples
-  The systemic kinetics of thiopentone were little affected by halothane anaesthesia.
 -  In most respects thiopentone seems to be comparable to its younger competitors.
 -  I have injected the antibiotic cefuroxime, thinking it was the anaesthetic thiopentone.
 -  Inhibition of neutrophil respiratory burst and chemotaxis in vitro by thiopentone but not methohexitone
 -  The use of induction agents, such as thiopentone, and muscle relaxants when a patient's airway reflexes are still present, can counteract these effects.
 -  Comparative evaluation of propanidid with thiopentone as an anaesthetic agent for electro-convulsive therapy.
 
Origin
  
1940s: from thio- + a contraction of pentobarbitone.