Semantic Network-based Approach to Studying the Choice of Lexis in Definitions of Technical Terms

This paper is devoted to the study of vocabulary units that are used in definitions of technical terms with the help of semantic network analysis. Since a semantic network represents a model of a definite system of knowledge it is claimed that it may reveal what predetermines the choice of adjacent technical terms as well as words of general vocabulary in definitions of technical terms denoting academic concepts that belong to different categories. The research demonstrates how some prototypic semantic schemes that consist of semantic relations of definite type between the adjacent technical terms of certain categories are reflected in definitions. The examples are mainly drawn from the actively developing terminologies of nanotechnology and space research as well as physics when necessary.