stratigraphy Syllabification: (stra·tig·ra·phy)Pronunciation: /strəˈtigrəfē/Definition of stratigraphy noun the branch of geology concerned with the order and relative position of strata and their relationship to the geological time scale. the analysis of the order and position of layers of archaeological remains. the structure of a particular set of strata. Derivatives stratigrapherPronunciation: /-fər/ noun stratigraphicPronunciation: /ˌstratəˈgrafik/ adjective stratigraphicalPronunciation: /ˌstratəˈgrafikəl/ adjective Origin: mid 19th century: from stratum + -graphystratigraphy in other Oxford dictionaries Definition of stratigraphy in the British & World English dictionary