Latin phrase meaning in its own class
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sui generis in Wiktionary, the free dictionary.
Sui generis ( SOO-ee JEN-ər-iss,[1] Classical Latin: [ˈsʊ.iː ˈɡɛnɛrɪs]) is a Latin phrase that means "of its/their own kind" or "in a class by itself", therefore "unique".[2]
Several disciplines use the term to refer to unique entities. These include:
- Biology, for species that do not fit into a genus that includes other species[3] (its own genus)
- Creative arts, for artistic works that go beyond conventional genre boundaries (its own genre)
- Law, when a special and unique interpretation of a case or authority is necessary (its own special case)
- Intellectual property rights, for types of works not falling under general copyright law but protected through separate statutes
- Philosophy, to indicate an idea, an entity, or a reality that cannot be reduced to a lower concept or included in a higher concept (its own category)