autocorrelation Syllabification: (au·to·cor·re·la·tion)Pronunciation: /ˌôtōˌkôrəˈlāSHən/Definition of autocorrelation noun Statistics correlation between the elements of a series and others from the same series separated from them by a given interval. a calculation using autocorrelation. autocorrelation in other Oxford dictionaries Definition of autocorrelation in the British & World English dictionary