English

Definition of deviation noun from the Oxford Advanced Learner's Dictionary

      

    deviation

     noun
    noun
    BrE BrE//ˌdiːviˈeɪʃn//
     
    ; NAmE NAmE//ˌdiːviˈeɪʃn//
     
     
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  1. 1[uncountable, countable] deviation (from something) the act of moving away from what is normal or acceptable; a difference from what is expected or acceptable deviation from the previously accepted norms sexual deviation a deviation from the plan Modern examples of this type of weaving showed little deviation from traditional patterns.
  2. 2[countable] deviation (from something) (specialist) the amount by which a single measurement is different from the average a compass deviation of 5° (= from true north) see also standard deviation
  3. Word Origin late Middle English: via French from medieval Latin deviatio(n-), from Latin deviare, from de- ‘away from’ + via ‘way’.Extra examples a slight deviation from our planned route The compass shows a deviation of 5°. This is a deviation from the original plan.
See the Oxford Advanced American Dictionary entry: deviation

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