Glossary

A deviation from the common rule, type, arrangement, or form.

Source: http://dictionary.reference.com/browse/anomaly

In context: From a cultural perspective, the prevailing paradigm often distorts an anomaly to make it seem as if it is still consistent with the shared system of meaning already in place. The only way for a paradigm shift to successfully occur is when enough anomalies mount up to break down the prevailing shared system of meaning.