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Dictionary

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

 

Hyponyms: dislocation, breakdown, surprise, surprisal, fuss, trouble, bother, hassle, magnetic storm, variation

 

Derivational Morphology: perturb, derange, throw out of kilter, disrupt, fluster, unhinge, disquiet, trouble, cark, distract, disorder, upset, discompose, untune, disconcert, discomfit, disturb

 

 
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