Definition of enduro noun from the Oxford Advanced Learner's Dictionary

 

enduro

 noun
noun
BrE BrE//ɪnˈdjʊərəʊ//
 
, BrE//enˈdjʊərəʊ//
 
; NAmE NAmE//ɪnˈdʊroʊ//
 
, NAmE//ɪnˈdjʊroʊ//
 
(pl. enduros)
 
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a long-distance race for bicycles or motor vehicles over rough ground, which is designed to test how long people can continue Word Origin 1950s: from endurance + the informal suffix -o.