Anomaly

Imagine you're trying to follow a diet plan, but every time you step on the scale, your weight is consistently higher than expected. This situation is similar to the scientific concept of an anomaly where a measurement continuously deviates from its anticipated value. Just as the unexpected weight gain indicates an underlying issue with your diet or metabolism, a persisting deviation in a scientific measurement suggests there might be an unaccounted factor or error affecting the results.
Practice Version

Anomaly: A persisting deviation in a quantity from its expected value. Anomaly. In Science, an anomaly is something unusual or unexpected that doesn't fit the normal pattern.