divalentWiktionary 原文构词拆分di-前缀Two. · Double, twice the quantity.+valent词根/词干词源说明From di- + valent. Compare ambivalent.释义（英文）形容词 Adjective(chemistry) Having an atomic valence of 2.(medicine) Having a vaccine valence of 2.名词 Noun(chemistry) Any divalent substance.词族派生词（1）divalently