dibutyl /dai'bju:til/ 📖 中文释义 [机] 二丁基 📘 English Definition(英文释义) n. A liquid hydrocarbon, C8H18, of the marsh-gas series,being one of several octanes, and consisting of two butyl radicals. Cf.Octane. ← dibutoxy D 字母词表 dibutyl amine →