(biology) a relative capacity to unite or react or interact as with antigens or a biological substrate
(chemistry) a property of atoms or radicals; their combining power given in terms of the number of hydrogen atoms (or the equivalent)
例句
用作名词(n.)
Each of the four valency electrons of the carbon atom is shared with one of a hydrogen atom.碳原子的四个价电子都各与氢原子的一个价电子共用。
Carbon has 4 valencies.碳的化合价是四价。
The valences of copper are 1 and 2.铜的化合价是+1价和+2价
German research in the valency theory breaks through the circle of the traditional grammar and catches the essence of the theory.德国的配价理论研究突破了传统语法的框框,抓住了配价的实质。
The valency in the linguistics exerts some influence on the following theory, such as case grammar, relational grammar and TG grammar.配价理论对后起的格语法、关系语法、转换生成语法等理论都产生了一定的影响。
