At present, the changing nature of contemporary LSP text requires proposing new approaches to its analysis in order to understand how meaning is encoded and interpreted in the process of professional communication. The analysis of contemporary LSP text is a multi-disciplinary research, which includes different aspects of cognitive linguistics and social sciences. The paper aims at the investigation of metaphoric meaning extension in contemporary LSP texts as metaphors are very essential for coining scientific terminology. Metaphorisation as an important process of human cognitive activity is in the focus of the study of metaphor creation mechanisms, which results in the ability to understand the links among symbols and images within the conceptual system of a language. The theoretical framework of the research includes cognitive, semantic and pragmatic approaches to textual analysis.