1.Definition: (physics) a secondary influence on a system that causes it to deviate slightly

Category: General

2.Definition: a disposition that is confused or nervous and upset

Related Noun(s):fluster

Category: General

3.Definition: activity that is a malfunction, intrusion, or interruption

"The term `distress' connotes some degree of perturbation and emotional upset", "He looked around for the source of the disturbance", "There was a disturbance of neural function"

Related Noun(s):disturbance

Category: General

4.Definition: an unhappy and worried mental state

Related Noun(s):disturbance, upset

Category: General

5.Definition: the act of causing disorder

Related Noun(s):disruption

Category: General