- the fact or quality of being likely to change:The lability of the neuromuscular system during physical therapy was measured in muscle force and reaction times.
- the ability or likelihood of a substance or compound to change or break down easily, rapidly, or continually:It was found that the degree of lability varies considerably with different amido-aldehydes.
- the unregulated or unstable state of emotions or mood, characterized by exaggerated affective expression: They were concerned about his emotional lability, from flaring anger one moment to maudlin sentimentality the next.
