RhymeZone: methohexital definitions

Definitions of methohexital:

noun: (pharmacology) 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.

(Definitions from Wiktionary)