The chemical process by means of which a change in physical condition, as in pressure or temperature, or the action of a solvent causes a molecule to split into simpler groups of atoms, single atoms, or ions.

• 离解(作用)在物理状态下，如在压力或温度下的变化，或在溶剂的作用下，使分子分离为更简单的一组原子、单原子或离子的化学过程