deviation
🇬🇧 /ˌdiːvɪˈeɪʃən/
🇺🇸 /ˌdiːviːˈeɪʃən/
📖 Definitions
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noun
The act of departing from an established course, standard, or norm; a divergence or departure from what is expected or accepted.; In statistics, the amount by which a single data point differs from a fixed value, typically the mean of a dataset.; In navigation, the angular difference between magnetic north and compass north caused by local magnetic influences on a vessel or aircraft.; In optics, the angle through which a ray of light is bent when passing through a prism or refracting surface.; A departure from accepted moral, social, or behavioral standards; an aberration or irregularity.; In genetics, a departure from the expected Mendelian ratio or from a normal phenotypic pattern.; In law, an unauthorized departure from the terms of a contract, insurance policy, or agreed route, especially in maritime law referring to a ship's unjustified departure from its intended voyage.; In politics, a departure from an official party line or ideological orthodoxy.; In ballistics, the lateral displacement of a projectile from its intended line of fire due to wind, spin, or other factors.
🔗 Details
Word forms
countable
Plural: deviations
Collocations
standard deviationdeviation from the normslight deviationsignificant deviationdeviation from the meandeviation from the plan
Derivatives
deviatedeviantdeviancedeviancydeviational
Synonyms
divergencedeparturevariationaberrationdiscrepancydigression
Antonyms
conformityadherencecompliance
Commonly confused
deviance
EN: 'Deviance' refers specifically to behavior that violates social norms, while 'deviation' is a broader, more neutral term for any departure from a standard or expected path.
divergence
EN: 'Divergence' emphasizes two things moving apart from each other, while 'deviation' emphasizes departure from a single established standard or course.
Spelling tips
EN: Note the transformation from the verb 'deviate' (ending in '-ate') to the noun 'deviation' (ending in '-ation'). Do not misspell as 'devition' or 'deviaton'.
💬 Examples
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The deviation from the original plan caused significant delays in the project.
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The standard deviation of the test scores was 12.5 points.
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The navigator corrected for the compass deviation before plotting the course.
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The deviation of the light ray increased as the angle of incidence grew larger.
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Society often punishes deviation from its established norms and values.
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The deviation from the expected 3:1 ratio suggested the presence of linked genes.
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The insurance company denied the claim on the grounds that the ship had made an unjustified deviation from its planned route.
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His deviation from party doctrine led to his expulsion from the central committee.
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The sniper accounted for wind deviation before taking the shot at long range.