An anomaly is any occurrence or object that is strange, unusual, or unique. It can also mean a discrepancy or deviation from an established standard or trend.

Anomalistics is the study of scientific anomalies. In computer science, anomaly detection refers to the process of detecting anomalies from the relevant data.

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  • 1 : the angular distance of a planet from its perihelion as seen from the sun
  • 2 : deviation from the common rule : irregularity
  • 3 : something anomalous : something different, abnormal, peculiar, or not easily classified

See also