autocross Syllabification: (au·to·cross)Pronunciation: /ˈôtōˌkrôs, -ˌkräs/Translate autocross | into German Definition of autocross noun North American a form of competition in which cars are driven around an obstacle course, typically marked out by cones. Origin: 1960s: blend of automobile and cross-countryautocross in other Oxford dictionaries Definition of autocross in the British & World English dictionary