1. perturbation - noun
· an unhappy and worried mental state; "there was too much anger and disturbance"; "she didn't realize the upset she caused me"
Synonym(s): disturbance, upset
Hypernym(s): agitation
2. perturbation - noun
· (physics) a secondary influence on a system that causes it to deviate slightly
Hypernym(s): influence
3. perturbation - noun
· 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"
Synonym(s): disturbance
Hypernym(s): activity
4. perturbation - noun
· a disposition that is confused or nervous and upset
Synonym(s): fluster
Hypernym(s): discomposure
5. perturbation - noun
· the act of causing disorder
Synonym(s): disruption
Hypernym(s): disturbance
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