methohexital
nounUK /ˌmɛθ.əʊˈhɛk.sɪt.əl/ · US /ˌmɛθ.əˈhɛk.səˌtɔl/
Etymology From meth(yl) + -o- + hex(ynyl) + (secobarb)ital.
1
Medicine, Pharmacology, Sciences A derivative of barbituric acid, used, as the sodium salt (more fully sodium methohexital), as a short-acting intravenous anesthetic; (1-methyl-5-allyl-5-[1-methyl-2-pentynyl])barbituric acid, C₁₄H₁₈N₂O₃.