Abstract: The process of structuring scientific knowledge of a particular domain in the form of a system with a relevant data base based on terminological networks implies normalization of relations between database elements, i.e. elements of terminological networks. In order to create a universal terminological network for the terms of one category, the author of the article has analyzed systemic features of the following nanotechnologist terms: nanofibre, nanowhisker, nanofilm, quantum dot, and nanowire that are attributable to the Instrument category. At the first stage of the research the author has used the analysis of definitions and research extracts which has allowed to define a corpus of complementary terms and types of systemic relations between those that create the basis for prototypical models of knowledge organization. Within the framework of the research, universal (prototypical) relations of the Instrument terms mean subsumption relations to other objects of the natural environment and objects of artificial origin, the presence of species and related objects, the possession of characteristics and the presence of components, variety of processes used to create artificial objects and their application as components of complex mechanisms. At the end of the research the author provides a fragment of the terminological network of the Instrument category that demonstrates discovered prototypical models of the relations between terms which can be extended and amended in the course of further research.