Term used for one aspect of the variation of a taxon which lacks a formal nomenclatural status.
Different from the statistical average.
That which is different from the characteristics of the other organisms or entities in a particular classification, especially a disease, species, or physical appearance.
This passage refers to a broad category that encompasses any deviation from the norm. It describes a group that differs from its parent in all of its characteristics. The term used to describe this group is now considered outdated and has been largely replaced by the terms “adapted strain” or “mutant.” It is a practical name for any unclassified variation within a species and is used to avoid the use of the term “variety,” which carries a specific naming convention.