Every scientific discipline, in order to determine with the greatest possible exactitude the phenomena that come within the scope of its particular domain, creates a vocabulary of technical terms with specific significances which it uses as indispensable tools in its research work. On many occasions, when one and the same phenomenon is considered according to the fundamental concepts of related disciplines, various designations are used, giving different meanings and nuances in the development of the analysis. This leads most frequently to an enrichment of the given interpretation, but sometimes also obscures it.