essentialism

In philosophy, essentialism is the view that, for any specific kind of entity, there is a set of characteristics or properties all of which any entity of that kind must possess. Therefore all things can be precisely defined or described. In this view, it follows that terms or words should have a single definition and meaning.

In simple terms, essentialism is a generalization stating that certain properties possessed by a group (e.g. people, things, ideas) are universal, and not dependent on context. For example, the essentialist statement 'all human beings are mortal'.

According to essentialism, a member of a specific group may possess other characteristics that are neither needed to establish its membership nor preclude its membership, but that essences do not simply reflect ways of grouping objects; they also result in properties of the object, as the object can be subjugated to smaller contexts.