Present-day definitions of conflictogenicity are analyzed in the article, for differentiation of this term from "conflict". Terms "ethno-conflictogenicity" and "ethno-conflictogenous potential" are compared and the most appropriate definition which is going to be used in later scientific researches is output. The possibility of ethno-conflictogenous potential of different territories existing and its variability on different levels of administrative division is substantiated. The possible method of EPT measurement is represented, and its most important factors, are given.