• WordNet 3.6
    • n deviation a turning aside (of your course or attention or concern) "a diversion from the main highway","a digression into irrelevant details","a deflection from his goal"
    • n deviation deviate behavior
    • n deviation the error of a compass due to local magnetic disturbances
    • n deviation the difference between an observed value and the expected value of a variable or function
    • n deviation a variation that deviates from the standard or norm "the deviation from the mean"
    • ***
Webster's Revised Unabridged Dictionary
    • deviation The act of deviating; a wandering from the way; variation from the common way, from an established rule, etc.; departure, as from the right course or the path of duty.
    • deviation (Statistics, Physics) the difference between an expected value of an observation or measurement and the actual value.
    • deviation The state or result of having deviated; a transgression; an act of sin; an error; an offense.
    • deviation (Com) The voluntary and unnecessary departure of a ship from, or delay in, the regular and usual course of the specific voyage insured, thus releasing the underwriters from their responsibility.
    • ***
Century Dictionary and Cyclopedia
    • n deviation The act of deviating; a turning aside from the way or course.
    • n deviation Departure from a certain standard or from a rule of conduct, an original plan, etc.; variation; specifically, obliquity of conduct.
    • n deviation In com., the voluntary departure of a ship without necessity, or without reasonable cause, from the regular and usual course of the specific voyage insured. In the law of insurance it includes unreasonable delay on the voyage, as well as beginning an entirely different voyage.
    • n deviation In astronomy, the oscillatory motion of a plane; especially, in the Ptolemaic system, the oscillation of the plane of the orbit of a planet, which was supposed to account for certain inequalities in the latitude.
    • n deviation If the law of error be stated by the equation , more conveniently written , then is called by Pearson the standard deviation. The square root of the average of the squared departures from the mean in both directions is a measure of variability called the standard deviation.
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Chambers's Twentieth Century Dictionary
    • ns Deviation a going out of the way: a turning aside; error
    • ***


  • Aristotle
    “The least initial deviation from the truth is multiplied later a thousandfold.”


Webster's Revised Unabridged Dictionary
LL. deviatio,: cf. F. déviation,
Chambers's Twentieth Century Dictionary
L. deviāre, -ātumde, from, via, a way.


In literature:

Some deviations from the usual course of development may be noted.
"Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1" by Various
The light which shines to show the path of right, shines to show our deviations from it.
"Expositions of Holy Scripture: Romans Corinthians (To II Corinthians, Chap. V)" by Alexander Maclaren
A man's modesty is more rigid, with little tendency to deviate toward either extreme.
"Studies in the Psychology of Sex, Volume 1 (of 6)" by Havelock Ellis
Landscape painting and poetry shew the same deviations from the straight line of development as in earlier times.
"The Development of the Feeling for Nature in the Middle Ages and Modern Times" by Alfred Biese
But the time came when Wade deviated from his gentleness of speech and leisure of action.
"The Mysterious Rider" by Zane Grey
But, the moment we deviate from the parallelism with the axis, double refraction sets in.
"Six Lectures on Light" by John Tyndall
But when I wrote John Woodvil, I never proposed to myself any distinct deviation from common English.
"The Works of Charles Lamb in Four Volumes, Volume 4" by Charles Lamb
In such cases, ships often deviate from their route, but generally by going to the bottom.
"Willis the Pilot" by Johanna Spyri
It would seem, however, to be the aim of life to strive after balance, any violent deviation from which is accompanied by calamity.
"The Practice and Science Of Drawing" by Harold Speed
I haven't deviated a hair's breadth.
"The Radio Boys on the Mexican Border" by Gerald Breckenridge

In poetry:

That goes against His intentions!
To avoid deviations,
God will entrust the production
Into Pain's hands, a deaf titan.
"Theater" by Nikolai Stepanovich Gumilev
For once, then, if untutored youth,
Youth unapproved by years,
May chance to deviate into truth,
When your experience errs;
"Upon A Venerable Rival" by William Cowper
Constrained to what abysmal pole
Shall severed armies close their flanks
To stand with deviated ranks,
Subserving to a final goal?
"The Testimony of the Suns" by George Sterling
So, doubtless, when beneath thy potence swerving,
'Tis that thou lead'st us by a path unknown,
Our seeming deviations all subserving
The perfect orbit round the central throne.
"The Dark Companion" by James Brunton Stephens
Some fickle creatures boast a soul
True as a needle to the pole,
Their humour yet so various—
They manifest their whole life through
The needle’s deviations too,
Their love is so precarious.
"Friendship" by William Cowper
I must tell you all about it! But I'll have to deviate
A little in beginnin', so's to set the matter straight
As to how it comes to happen that I never took a wife--
Kindo' "crawfish" from the Present to the Springtime of my life!
"Farmer Whipple--Bachelor" by James Whitcomb Riley

In news:

John Baer/Lionsgate Jason Statham stars in the meat-and-potatoes action movie “Safe,†though he does deviate a bit from action-movie convention by showing some tenderness.
Then in mid-August, the International Water Ski Federation denied the record, citing boat deviation.
People who have a deviation often breathe through their mouth during sleep.
This paper discusses how Chirascan™-plus ACD can rapidly prepare many replicates and perform multiple measurements for clear determination of standard deviations.
In North America, a persistent ridge of high pressure over the central and eastern US brought record temperatures and substantial deviations from normal wind speeds.
Apple store employees are loyal to the brand, so allegations that one store deviated from the playbook spread quickly this week.
However, when an actor deviates from the optimal path, a typical application of A* executes a new search from the deviation point to the goal.
After engineers measure the range of process parameters, they analyze the required operational changes necessary to narrow the range and standard deviation of specific values.
Oklahoma State deviated from its normal procedure Friday when it failed to disclose whether injured starting freshman quarterback Wes Lunt would be available for Saturday's game against Texas.
What happens if you're drilling a well and you run into dips, folds and other deviations that are too small to be detected by your seismic data model, yet large enough to interfere with your drilling.
Because ours is a public institution, and, as I've since discovered, we hew to a very rigid set of questions during applicant interviews: no deviation allowed.
The Lehigh County District Attorney charged Saleem Faulk, 43, of the 400 block of Washington Street with rape , involuntary deviate sexual intercourse, robbery of a motor vehicle and robbery among other things.
The Sheridan County Fair Board decided to deviate from the path outlined by the master reconstruction plan, by voting during their regular meeting Thursday night to approve a temporary road redesign.
The Bor-It REI (Remote Elevation Indicator) is an accurate and inexpensive method of monitoring when your casing deviates from the boring grade.
Google Trends calculates the popularity of a search term in any given week and charts how much it deviates from its average.

In science:

The large deviation properties of the spectral measure of such a matrix was studied in but only a large deviation upper bound could be obtained so far.
Large deviations and stochastic calculus for large random matrices
At the level of deviations, it is very natural since we shall construct infinitesimally the paths to follow to create a given deviation.
Large deviations and stochastic calculus for large random matrices
Similarly, we shall not detail here the proof that ˆµN # W ⊗N is exponentially tight which reduces the proof of the large deviation principle to the proof of a weak large deviation principle and thus to estimate the probability of deviations into small open balls (cf.
Large deviations and stochastic calculus for large random matrices
Hence, Riesz’s theorem asserts that there exists a function k verifying (4.2.12,4.2.13). • Large deviation lower bound The derivation of the large deviation upper bound was thus fairly easy.
Large deviations and stochastic calculus for large random matrices
The proof is rather classical (it uses Doob’s inequality but otherwise is closely related to the proof that SµD is a good rate function); we shall omit it here (see the first section of for details). (c) Weak large deviation upper bound : We here summarize the main arguments giving the weak large deviation upper bound.
Large deviations and stochastic calculus for large random matrices