Another primitive concept in substance theory is the inherence the properties within a substance.

The basic ingredients of their approach are primitive concepts such as event, light ray, particle and freely falling particle.

It seems that there simply are no definitions - especially those based in sensory primitive concepts.

Many symptoms show only too clearly, however, that the primitive concepts need further elucidation.

But Professor Barabasi has put more flesh on the relatively primitive concept of the network effect.

The notions of angle and distance become primitive concepts.

It relies on temperature as one of its primitive concepts, and used in calorimetry.

"If you're so above primitive concepts of gender, why are you displaying such interest in her?"

This is a primitive concept that is still prevalent in the opinions expressed by Europe's leaders.

To avoid this vicious circle certain concepts must be taken as primitive concepts; terms which are given no definition.