oxoanionWiktionary 原文英美构词拆解oxooxo-前缀anionanion词干oxo-(chemistry) Oxygen. · (organic chemistry) Having a methylene group replaced by a carbonyl group.词源说明From oxo- + anion.释义名词noun1(chemistry) Any anion derived from an oxoacid同族词派生词 2oxoanionic·polyoxoanion