cyclononaneWiktionary 原文英美构词拆解cyclocyclo-前缀nonanenonane词干cyclo-Circle, circular. · (chemistry) A cyclic compound.词源说明From cyclo- + nonane.释义名词noun1(organic chemistry) An alicyclic hydrocarbon, C9H18, consisting of a ring of nine carbon atoms同族词派生词 1spirocyclononane