labdaneWiktionary 原文英美构词拆解labdlabdanum词干ane-ane后缀-aneVariant of -an, usually with differentiation (germane, humane, urbane), but sometimes alone (mundane). · (organic chemistry) A saturated hydrocarbon; an alkane.词源说明From labdanum + -ane.释义名词noun1(organic chemistry) A natural bicyclic diterpene with the chemical formula C20H38, forming the structural core of a wide variety of natural products同族词派生词 2norlabdane·tetranorlabdane