dicationWiktionary 原文英美构词拆解didi-前缀cationcation词干di-Two. · Double, twice the quantity.词源说明From di- + cation.释义名词noun1Any cation, of general formula X2+, formed by the removal of two electrons from a neutral species同族词派生词 1dicationic相关词 3monocation·trication·tetra