Perturbation
[n] the act of causing disorder
[n] a disposition that is confused or nervous and upset
[n] activity that is an intrusion or interruption; "he looked around for the source of the disturbance"; "there was a disturbance of neural function"
[n] (physics) a secondary influence on a system that causes it to deviate slightly
[n] an unhappy and worried mental state; "there was too much anger and disturbance"; "she didn't realize the upset she caused me"
Related Information
Related Terms
ado, aggravation, agitation, all-overs, angst, animation, anxiety, anxiety hysteria, anxiety neurosis, anxious bench, anxious concern, anxious seat, anxiousness, apprehension, apprehensiveness, arousal, arousing, baffle, bafflement, befuddlement, bewilder