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4 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 per·tur·ba·tion /ˌpɝtɚ/
 擾動

From: Network Terminology

 perturbation
 擾動

From: Webster's Revised Unabridged Dictionary (1913)

 Per·tur·ba·tion n.
 1. The act of perturbing, or the state of being perturbed; esp., agitation of mind.
 2. Astron. A disturbance in the regular elliptic or other motion of a heavenly body, produced by some force additional to that which causes its regular motion; as, the perturbations of the planets are caused by their attraction on each other.
 

From: WordNet (r) 2.0

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