EN
The article presents typological description of consonantal geminates in the Slavonic languages, especially in Polish, Belorussian and Serbian. It is a preliminary study, a part of the bigger project that aims at investigation of a scope of the geminates' occurrence in all Slavonic languages - in the project the geminates' frequency in dictionaries and texts will be found and the morphological and phonetic restrictions of their appearance will be defined. The author is going to examine the process of adaptation of the newest borrowings with geminates in different Slavonic languages to define tendencies of the development.