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

 

quincentenary

 noun
noun
BrE BrE//ˌkwɪnsenˈtiːnəri//
 
; NAmE NAmE//ˌkwɪnsenˈteneri//
 
(pl. quincentenaries)
 
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a 500th anniversary the quincentenary of Columbus’s voyage to America Word Origin late 19th cent.: from Latin quinque ‘five’ + centenary.
See the Oxford Advanced American Dictionary entry: quincentenary