diphosphonateWiktionary 原文英美构词拆解didi-前缀phosphonatephosphonate词干di-Two. · Double, twice the quantity.词源说明From di- + phosphonate.释义名词noun1(organic chemistry) Any compound (especially a class of drugs) having two phosphonate groups同族词派生词 3methylenediphosphonate·methylene diphosphonate·aminohydroxypropylidene diphosphonate