But these theories refer not only to love but also to other types of positive relationships such as liking.

This standard economic theory refers to what is called the 'substitution effect'.

But Campbell's theory refers to a normal shark exposed to stress.

His theory of norms refers roughly to rules that serve as a guide for human behaviour.

First, the earlier theory which originated from the concept of a hypothetical medium referred as ether.

Compact theory refers to two theories related to the development of federal constitutions.

Neutral theory may refer to one of these two related theories:

In ancient Greece, theories referred to dryness of the tongue.

This theory frequently refers to the growing number of people between the ages of 25 and 35 in the 1970s, or the baby boom generation.

The mistaken view is that theory refers to ideas which have never been tested.