Perturbation

/pətəbˈe‍ɪʃən/

/ˌpɝtɝˈbeɪʃən/

Perturbation

a disruption or disturbance of a normal state of mind or emotions

the act of causing disorder

synonyms : disruption

a disposition that is confused or nervous and upset

synonyms : fluster

activity that is a malfunction, intrusion, or interruption

(physics) a secondary influence on a system that causes it to deviate slightly

Examples

1. So perturbation induces a change.

2. Chapter two is about perturbations.

3. Each of them can cause perturbations.

4. So we did constant perturbations already.