nuclear seme

The process of scientific knowledge reintegration, resulting in the emergence of new meanings of terms is researched in this article. Semantic changes that occur during the reconsideration of the initial meaning are considered. It is proved that seme-motivator which can take the nuclear or peripheral place in the structures of initial and derivative meanings is the foundation of the aforementioned process. Scientific fields which motivate semantic processes of the current term transformation and the emergence of new terminological meanings are emphasized.