covalenceWiktionary 原文英美构词拆解coco-前缀valencevalence词干co-Together: the root word is done co-incidently. · Having commonality, similarity with respect to the root.词源说明From co- + valence.释义名词noun1(chemistry) A form of valence in which electrons are shared between participating atoms2(chemistry) The number of electrons that a particular atom can share (and therefore the number of covalent bonds it can form)同族词派生词 1ionocovalence