#1 disturbance n. [perturbation] 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". wn
#2 disturbance n. [perturbation, upset] an unhappy and worried mental state; "there was too much anger and disturbance"; "she didn't realize the upset she caused me". wn
#3 disturbance n. [disruption, commotion, flutter, hurly burly, to-do, hoo-ha, hoo-hah, kerfuffle] a disorderly outburst or tumult; "they were amazed by the furious disturbance they had caused". wn
#4 disturbance n. [affray, fray, ruffle] a noisy fight. wn
#5 disturbance n. the act of disturbing something or someone; setting something in motion. wn
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