Aberration

Aberration is described as departures from a usual distribution (Stroup 1994). It should be differentiated from an outbreak because it denotes changes in the occurrence of health events that are statistically significant compared with usual history, however, an outbreak or epidemic may be present in the absence of a statistical increase. Aberration (Latin, aberratio; English, tion = result of an action) is any body, form (shape) or structure that deviates from the normal or typical condition. The term is often applied subjectively in a negative context. Source: A Dictionary of Public Health 3rd Edition 2013. http://www.centurypublications.co.in/

Although it is deviation or departure from the normal or usual and appeared to be abnormal but this is definitely important for innovation, understanding of variation, diversity, and uniqueness. Aberration is commonly applied in genomics but such aberration produce new characteristics and new being.