D defs.my
Entry 4 senses Webster, 1913

Outlier

/out'-lī-ẽr/ · Out·li·er · IPA /ˈaʊtˌlaɪə(ɹ)/
01 n. One who does not live where his office, or business, or estate, is.
  1. 1.
    One who does not live where his office, or business, or estate, is.
  2. 2.
    That which lies, or is, away from the main body.
  3. 3.
    A part of a rock or stratum lying without, or beyond, the main body, from which it has been separated by denudation.(Geol.)
  4. 4.
    A datum that lies significantly beyond the main cluster of data points on a graph or diagram; -- suggestive of an error in measurement.(Statistics)