These are referred to by Hunter as 'residual categories', and they cover historical aspects of power, psychological motivations and value considerations.

The term 'pluralism' appears to have become something of a residual category applied to all non-Marxist and non-elitist studies of political phenomena.

Many maintain that culture is a residual category in which lazy social scientists take refuge when they can't develop a more rigorous theory.

Classifying services in this way, as some kind of residual category, has, as indicated above, left its problems.

Oil in the residual and dispersed categories is in the process of being degraded.

There is no more precise definition as it is simply a residual category.

Every classification has a residual category for unusual members.

This must not just be an exceptional clause or a residual category, as it currently is in the Treaty.

It is a residual category, with dependence taking precedence when applicable.

Being a residual diagnostic category, the Bell's Palsy diagnosis likely spans different conditions that our current level of medical knowledge cannot distinguish.