• WordNet 3.6
    • n outlier an extreme deviation from the mean
    • n outlier a person who lives away from his place of work
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Webster's Revised Unabridged Dictionary
    • Outlier (Statistics) A datum that lies significantly beyond the main cluster of data points on a graph or diagram; -- suggestive of an error in measurement.
    • Outlier (Geol) A part of a rock or stratum lying without, or beyond, the main body, from which it has been separated by denudation.
    • Outlier One who does not live where his office, or business, or estate, is.
    • Outlier That which lies, or is, away from the main body.
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Century Dictionary and Cyclopedia
    • n outlier One who does not reside in the place with which his office or duty connects him.
    • n outlier An outsider.
    • n outlier A part lying without or beyond the main body; an isolated or outlying part; specifically, in geology, a part of a stratum or group of strata, or a mass of rock of any kind, which has been left behind while that part of the formation by which it was originally surrounded, and to which it belonged, has been removed by denudation. The outlier or mass which has escaped being worn away by atmospheric or other agencies remains as a witness of the former greater extension of the formation. Opposed to inlier.
    • n outlier In zoology, that which is outlying, subtypical, or aberrant, as a genus or family of animals.
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Chambers's Twentieth Century Dictionary
    • n Outlier owt′lī-ėr (geol.) a portion of a stratum: anything, as detached from the principal mass, and lying some distance from it
    • v.i Outlier to live in the open air
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In literature:

Sponging out the world of the outliers, it gives no foothold on another sphere in return.
"Waifs and Strays" by O. Henry
Outliers of the pine forest extend far down into the United States.
"The Red Man's Continent" by Ellsworth Huntington
Just opposite, there are buttes, outliers of cliffs to the left.
"Canyons of the Colorado" by J. W. Powell
Hungary, B2, is not only geographically an outlier, but politically is the weakest link in the chain of the Austro-Germanic alliance.
"A General Sketch of the European War" by Hilaire Belloc
The land lay broad to starboard, a land of yellow hills with surf-beaten outliers of black reef.
"Great Sea Stories" by Various
They were only a sort of outliers in case something went wrong with those in the sure places.
"Labrador Days" by Wilfred Thomason Grenfell
I leaned forward until my face was hardly a foot from the outliers, and these I learned to know as individuals.
"Edge of the Jungle" by William Beebe
It is on this series that the Shannon rises, under the high outlier of grit on Cuilcagh.
"Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5" by Various
The dome of Knocklayd, capped by an outlier of chalk and basalt, consists mostly of this far more ancient series.
"Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2" by Various
Miraculously, he reached the outlier skirmish without being spotted.
"Makers" by Cory Doctorow

In news:

It eliminates false readings by taking 10 readings of a prepared sample from different angles and removing outliers.
Bowl Championship Series bystander as it monitors three undefeated outliers competing for this season's title.
Before we begin, a note: I don't have a problem with outlier votes as long as people can defend them.
Some of the outliers are obvious: Arizona and Alaska went down because they didn't have candidates on the ticket this year.
Outliers in the Realm of Relationship.
A few happy hour outliers in downtown Boulder.
For one, by looking at a range of model forecasts , it becomes apparent which of these predictions are 'outliers'.
When Rasmussen released a poll six days ago that found Republican Linda McMahon leading Democrat Chris Murphy by three, many wondered if it was an outlier.
"I've always felt like a bit of an outlier in the digital library sphere," says John P Wilkin, associate university librarian for library information technology at the University of Michigan.
The United States would appear to have entered a new trend for new jobless claims, one characterized by outliers and volatility.
We thought a few "outliers" would throw their hats into the ring and become a part of the government process that many outliers are opposing.
Outlier, Nau, Levi 's: Designing for the Ride.
What do you think, readers, is Zogby's poll an outlier or a harbinger.
And as sequencing costs continue to slide, coverage of these now-outlier organisms will expand, hopefully providing even better quality references in the future.
"We need to find out why we're such an outlier and to think about how to reverse the trend of prison population growth," said state Senate President Jeff Kessler, D-Marshall.

In science:

Removing these outliers from the sample would result in closer agreement with Xue & Wu’s relation.
The impact of galaxy formation on X-ray groups
The extrema of the scatter (apart from a small number of significant outliers) span about 1 dex.
Star formation rate indicators in the Sloan Digital Sky Survey
Clearly, except for the three outliers, dEs populate the low-σ extension of the CaT*σ relation of bright Es and bulges.
The puzzlingly large Ca II triplet absorption in dwarf elliptical galaxies
Excluding the outliers they find values of σ(∆) ∼ 0.05.
Discovery of optically faint obscured quasars with Virtual Observatory tools
These relations can be used in combination to reduce errors in photometric distance estimates caused by photometric outliers in the fits and to overcome photometric errors in one or more filters for the target stars.
The Solar Neighborhood X: New Nearby Stars in the Southern Sky and Accurate Photometric Distance Estimates for Red Dwarfs