Anomaly

An anomaly is a deviation from the common rule. It is an irregularity that is difficult to explain using existing rules or theory.

In astronomy, anomaly is the angular distance of a planet from its perihelion, as observed from the sun.
In an anomaly time series the times are not uniformly spaced.
In physics, an anomaly is a classical symmetry that is not a symmetry of the quantum theory. See anomaly (physics).
Anomaly is a metal band. See Anomaly (band).

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