outlier
n.n. a value or piece of data that is very different from the others in a group. In geology, it can also describe a rock or mineral that is found far from where it usually appears.
n. a data point that significantly deviates from the rest of a sample or population. In a geological context, it refers to a rock or mineral occurrence that is chemically or geographically distinct from its surrounding area.
The number 100 is an outlier in this small data set.
The researcher noticed that one of the test results was an outlier, suggesting a possible error in the measurement process.
Geologists identified a granite outlier within a field of sedimentary rock, indicating a period of intense tectonic activity that had pushed the intrusive body to the surface.
From outlie + -er.