the act or process of changing something completely, especially into something different

Nuclear transmutation is the conversion of one chemical element into another. 原子核蜕变是指一种化学元素变为另一种化学元素。

These particles are likely to have undergone several transmutations in their short lives. 在它们短暂的生命周期中这些粒子可能发生几次蜕变。