spatiotemporal Syllabification: (spa·ti·o·tem·po·ral)Pronunciation: /ˌspāSHēōˈtempərəl/Definition of spatiotemporal adjective Physics & Philosophy belonging to both space and time or to space-time. Derivatives spatiotemporally adverb spatiotemporal in other Oxford dictionaries Definition of spatiotemporal in the British & World English dictionary