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1. One that lives or is located outside or at the edge of a given area: outliers of the forest standing in the field.
2. One that exists outside or at an extreme of a category, pattern, or expectation; an extreme case or exception: "those egg-laying outliers of mammaldom, the duck-billed platypus and the anteating echidna" (Natalie Angier).
3. A value far from most others in a set of data: "Outliers make statistical analyses difficult" (Harvey Motulsky).
4. A portion of stratified rock separated from a main formation by erosion.


1. (Geological Science) an outcrop of rocks that is entirely surrounded by older rocks
2. a person, thing, or part situated away from a main or related body
3. a person who lives away from his place of work, duty, etc
4. (Statistics) statistics a point in a sample widely separated from the main cluster of points in the sample. See scatter diagram


(ˈaʊtˌlaɪ ər)

1. a person residing away from a business, duty, etc.
2. Geol. a part of a formation left detached through the removal of surrounding parts by erosion.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.outlier - a person who lives away from his place of work
occupant, occupier, resident - someone who lives at a particular place for a prolonged period or who was born there
2.outlier - an extreme deviation from the mean
statistics - a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters
deviation - the difference between an observed value and the expected value of a variable or function
valeur anormale
References in classic literature ?
Eat," said Akela, rising up from the meat Mowgli had brought him, and the Outlier flung himself on it.
Thou art indeed an Outlier," Mowgli called back; "but we will speak when the dholes are dead.
It was Won-tolla, the Outlier, and he said never a word, but continued his horrible sport beside the dholes.
Many insurers, including Medicare and Medicaid, use outlier payments in their prospective payment system (PPS) to compensate providers when the actual costs far exceed the prospective payment rate (MedPAC 2008; OIG 2011; CMS 2014).
Outlier detection for high dimensional data: Author-R.
1 ] proposed Si-based clustering approaches for outlier detection, and Jindal et al.
Outlier detection is a subject undergoing intense study in data mining research.
7, 2014 /PRNewswire/ -- Gartner IT Expo -- Today, Outlier Security, whose mission is to detect new and advanced threats missed by legacy cybersecurity systems, launched at the Gartner Symposium/IT Expo in Orlando.
It is an important technique used for outlier analysis.
This said, the question remains of figuring out how Modi, the outlier, will impact on India's governance and polity.
Gonzalez is one of the founders of OUTLIER LABS, a new organization created to provide resources and support to entrepreneurs and startup companies in Southern Utah.