anomaly : अर्थ और परिभाषाएं

Deviation or departure from the normal or common order, form, or rule.

One that is peculiar, irregular, abnormal, or difficult to classify: "Both men are anomalies: they have . . . likable personalities but each has made his reputation as a heavy” ( David Pauly).

Astronomy The angular deviation, as observed from the sun, of a planet from its perihelion.