Anomaly – Definition & Meaning

Anomaly is a term that is often used in various fields of study, such as science, mathematics, and statistics. It is a word that is used to describe something that deviates from what is considered normal or expected. In this article, we will explore the definition and meaning of anomaly, its origin, and its associations.


Anomaly can be defined as a deviation from the norm or an irregularity. It can also refer to something that is unusual or unexpected. In science, anomaly is used to describe a phenomenon that cannot be explained by current theories or models.


The word anomaly comes from the Greek word “anomalos,” which means “irregular.” It was first used in English in the mid-17th century.

Meaning in different dictionaries

According to the Oxford English Dictionary, anomaly is “something that deviates from what is standard, normal, or expected.” Merriam-Webster defines it as “something different, abnormal, peculiar, or not easily classified.”


Anomaly is often associated with unexpected events or outcomes. In science, it can refer to a data point that falls outside of the expected range. In mathematics, it can refer to a deviation from a pattern or trend.


Synonyms for anomaly include abnormality, deviation, irregularity, oddity, peculiarity, and quirk.


Antonyms for anomaly include conformity, normality, regularity, and typicality.

The same root words

Words with the same root as anomaly include anomalous, which means “deviating from what is standard, normal, or expected,” and anomalistic, which refers to something that is related to anomalies.

Example Sentences

  1. The scientist was puzzled by the anomaly in the data.
  2. The weather forecast predicted an anomaly in the temperatures for this time of year.
  3. The student’s test scores were an anomaly compared to the rest of the class.
  4. The team was surprised by the anomaly in their experiment results.
  5. The discovery of the new species was considered an anomaly in the field of biology.
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