Species, in metaphysics, is a specific genus-differentia defined item that is described first by its genus (genos) and then its differentia (diaphora). Put differently, it is an item, not necessarily biological, that belongs to a group and can be distinguished from other species in that group.
For example, a human being as a species can be defined as an animal (genus) that can reason (differentia).
|This article about metaphysics is a stub. You can help Wikipedia by expanding it.|