isooctylWiktionary 原文英美构词拆解isoiso-前缀octyloctyl词干iso-Same, identical. · Equal; equivalent.词源说明From iso- + octyl.释义名词noun1(organic chemistry) Any of several octyl isomers that have a sidechain, but especially 6-methyl-heptyl同族词派生词 1diisooctyl