perturbation : | |||||||||||||
a disposition that is confused or nervous and upset activity that is an intrusion or interruption; "he looked around for the source of the disturbance"; "there was a disturbance of neural function" (physics) a secondary influence on a system that causes it to deviate slightly the act of causing disorder an unhappy and worried mental state; "there was too much anger and disturbance"; "she didn''t realize the upset she caused me" |
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