menadioneWiktionary 原文英/ˌmɛn.əˈdʌɪ.əʊn/美/ˌmɛn.əˈdaɪˌoʊn/构词拆解methyl词干+naphthalene词干+dione词干释义名词noun1(pharmacology) A synthetic yellow compound C11H8O2 with the biological activity of natural vitamin K menaquinone, used to treat hemorrhage.同族词派生词 3menadiol·