excavation Syllabification: (ex·ca·va·tion)Pronunciation: /ˌekskəˈvāSHən/Translate excavation | into German | into Italian | into Spanish Definition of excavation noun the action of excavating something, especially an archaeological site:the methods of excavation have to be extremely rigorous students often participate in excavations a site that is being or has been excavated. excavation in other Oxford dictionaries Definition of excavation in the British & World English dictionary