diterpeneWiktionary 原文英美构词拆解didi-前缀terpeneterpene词干di-Two. · Double, twice the quantity.词源说明From di- + terpene.释义名词noun1(organic chemistry) any terpene formed from four isoprene units, and having twenty carbon atoms; includes vitamin A, the gibberellins, and various biologically active lactones such as quassin