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TWL/NWL (Scrabble US/CA/TH)
SOWPODS/CSW (Scrabble UK / ALL)
ENABLE (Words with Friends)

Meaning of perturbation

1 definition found

From WordNet (r) 3.0 (2006) [wn]:

  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}, {perturbation}, {upset}]
      2: (physics) a secondary influence on a system that causes it to
         deviate slightly
      3: 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"
         [syn: {perturbation}, {disturbance}]
      4: a disposition that is confused or nervous and upset [syn:
         {perturbation}, {fluster}]
      5: the act of causing disorder [syn: {disruption},
         {perturbation}]

Source : WordNet ® Princeton University. 2010.

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