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deviation

[dee-vee-ey-shuh n]
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noun
  1. the act of deviating.
  2. departure from a standard or norm.
  3. Statistics. the difference between one of a set of values and some fixed value, usually the mean of the set.
  4. Navigation. the error of a magnetic compass, as that of a ship, on a given heading as a result of local magnetism.Compare variation(def 8).
  5. Optics.
    1. Also called deflection.the bending of rays of light away from a straight line.
    2. angle of deviation.
  6. departure or divergence from an established dogma or ideology, especially a Communist one.
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Origin of deviation

1375–1425; late Middle English (< Middle French) < Medieval Latin dēviātiōn- (stem of dēviātiō), equivalent to Late Latin dēviāt(us) (see deviate) + -iōn- -ion
Related formsde·vi·a·to·ry [dee-vee-uh-tawr-ee, -tohr-ee] /ˈdi vi əˌtɔr i, -ˌtoʊr i/, de·vi·a·tive, adjectivenon·de·vi·a·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

crookedcurvedundulatingmeanderingserpentineaberrantanomalousatypicaldeviantextraordinaryghostlyinexplicableirregularmarvelousmiraculousmysteriousoddpeculiarstrangesuperhuman

British Dictionary definitions for deviative

deviation

noun
  1. an act or result of deviating
  2. statistics the difference between an observed value in a series of such values and their arithmetic mean
  3. the error of a compass due to local magnetic disturbances
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for deviative

deviation

n.

1640s, noun of action from deviate (v.). Statistical sense is from 1858. Related: Deviational.

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Online Etymology Dictionary, © 2010 Douglas Harper

deviative in Medicine

deviation

(dē′vē-āshən)
n.
  1. A turning away or aside from a normal course.
  2. An abnormality.
  3. Deviant behavior or attitudes.
  4. The difference, especially the absolute difference, between one number in a set and the mean of the set.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

deviative in Science

deviation

[dē′vē-āshən]
  1. The difference between one number in a set and the mean of the set.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.