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Noun: deviation  ,dee-vee'ey-shun
  1. A variation that deviates from the standard or norm
    "the deviation from the mean";
    - divergence, departure, difference
  2. (statistics) the difference between an observed value and the expected value of a variable or function
  3. The error of a compass due to local magnetic disturbances
  4. Deviate behaviour
    - deviance, deviancy
  5. A turning aside (of your course, attention or concern)
    "a deviation from the main highway";
    - diversion, digression, deflection, deflexion [Brit], divagation

Derived forms: deviations

Type of: abnormality, erroneousness, error, fluctuation, irregularity, statistic, turn, turning, variation

Encyclopedia: Deviation