outlier

One that lives or is located outside or at the edge of a given area.

One that exists outside or at an extreme of a category, pattern, or expectation; an extreme case or exception.

A value far from most others in a set of data.

A portion of stratified rock separated from a main formation by erosion.

One who does not reside in the place with which his office or duty connects him.

An outsider.

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.

In zoology, that which is outlying, subtypical, or aberrant, as a genus or family of animals.

One who does not live where his office, or business, or estate, is.

That which lies, or is, away from the main body.