# deviation

[ dee-vee-ey-shuhn ]
/ ˌdi viˈeɪ ʃən /
Save This Word!
See synonyms for: deviations on Thesaurus.com

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.
1. Also called deflection. the bending of rays of light away from a straight line.
departure or divergence from an established dogma or ideology, especially a Communist one.
QUIZ
CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?
There are grammar debates that never die; and the ones highlighted in the questions in this quiz are sure to rile everyone up once again. Do you know how to answer the questions that cause some of the greatest grammar debates?
Question 1 of 7
Which sentence is correct?

## Origin ofdeviation

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

## OTHER WORDS FROM deviation

de·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

## Words nearby deviation

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

## British Dictionary definitions for deviation

deviation
/ (ˌdiːvɪˈeɪʃən) /

noun
an act or result of deviating
statistics the difference between an observed value in a series of such values and their arithmetic mean
the error of a compass due to local magnetic disturbances
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

## Scientific definitions for deviation

deviation
[ dē′vē-āshən ]

The difference between one number in a set and the mean of the set.