deviatory

noun

the act of deviating.

departure from a standard or norm.

Statistics. the difference between one of a set of values and some fixed value, usually the mean of the set.

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 ).

Optics.

Also called deflection. the bending of rays of light away from a straight line.

angle of deviation.

departure or divergence from an established dogma or ideology, especially a Communist one.

Origin:
1375–1425; late Middle English (< Middle French) < Medieval Latin dēviātiōn- (stem of dēviātiō), equivalent to Late Latin dēviāt(us) (see deviate) + -iōn- -ion

Related forms

de·vi·a·to·ry

[dee-vee-uh-tawr-ee, -tohr-ee] , de·vi·a·tive, adjective

non·de·vi·a·tion, noun

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Link To deviatory

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a gadget; dingus; thingumbob.

a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.

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Collins

World English Dictionary

deviate

—vb
1.	(usually intr) to differ or diverge or cause to differ or diverge, as in belief or thought
2.	(usually intr) to turn aside or cause to turn aside; diverge or cause to diverge
3.	(intr) psychol to depart from an accepted standard or convention

—n, —*adj*
4.	another word for deviant

[C17: from Late Latin dēviāre to turn aside from the direct road, from de- + via road]

'deviator

—n

'deviatory

—*adj*

deviation (ˌdiːvɪˈeɪʃən)

—n
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

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline

Word Origin & History

deviation

1640s, noun of action from L. deviare (see deviant). Statistical sense is from 1858.

Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage

Medical Dictionary

deviation de·vi·a·tion (dē'vē-ā'shən)
n.

A turning away or aside from a normal course.
An abnormality.
Deviant behavior or attitudes.
The difference, especially the absolute difference, between one number in a set and the mean of the set.

American Heritage

Science Dictionary

deviation

(dē'vē-ā'shən) Pronunciation Key
The difference between one number in a set and the mean of the set.

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Related Words

deviation