motocross
noun/ˈməʊtəʊkrɒs/
/ˈməʊtəʊkrɔːs/
(British English also scrambling)
[uncountable]- the sport of racing motorcycles over rough groundWord Origin1950s: abbreviation of motor + cross.
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motocross
Definition of motocross noun from the Oxford Advanced Learner's Dictionary