lability
Definition
- Noun:
- Instability or tendency to change: "lability" refers to the quality of being easily changed, altered, or prone to fluctuation. In chemistry and physics, it describes a substance or system that is unstable and readily undergoes transformation.
- Emotional or psychological instability: In psychology, "lability" denotes rapid, often unpredictable shifts in mood or emotional state, sometimes called emotional lability.
Usage Examples
Scientific context:
- The lability of the compound made it difficult to store without refrigeration. (The substance's instability required special preservation.)
- Researchers studied the lability of the chemical bonds under high temperatures. (The ease with which bonds broke was examined.)
Psychological context:
- Her emotional lability after the accident caused her to cry and laugh within minutes. (Her moods shifted quickly and unpredictably.)
- Patients with certain neurological conditions may exhibit lability in their emotional responses. (They show rapid, unstable emotional changes.)
Advanced Usage
"Thermal lability": the tendency of a substance to decompose or change when heated.
- Enzymes often show thermal lability, losing activity above 40°C. (They are unstable under heat.)
"Emotional lability": a clinical term for involuntary, excessive mood swings.
- Emotional lability is a common symptom in pseudobulbar affect. (A condition marked by sudden crying or laughing.)
Variants and Related Words
Labile (adj): prone to change; unstable.
- The labile nature of the chemical required careful handling. (It was easily altered.)
Lability (n): the state or quality of being labile.
Synonyms
- Instability: lack of firmness or steadiness.
- Unsteadiness: not stable or fixed.
- Volatility: tendency to change rapidly, especially in mood or substance.
Antonyms
- Stability: the quality of being fixed and unchanging.
- Constancy: the state of remaining the same.
Related Idioms
Phrasal Verbs