In reference to biochemistry, this is an important concept as far as kinetics is concerned in metalloproteins.
In medicine, the term "labile" means susceptible to alteration or destruction.
For example, a heat-labile protein is one that can be changed or destroyed at high temperatures.
[2] Compounds or materials that are easily transformed (often by biological activity) are termed labile.
As a general example, if a molecule exists in a particular conformation for a short lifetime, before adopting a lower energy conformation (structural arrangement), the former molecular structure is said to have 'high lability' (such as C25, a 25-carbon fullerene spheroid).