English

Definition of bicentennial adjective from the Oxford Advanced Learner's Dictionary

 

bicentennial

 adjective
adjective
BrE BrE//ˌbaɪsenˈteniəl//
 
; NAmE NAmE//ˌbaɪsenˈteniəl//
 
(especially North American English) (British English bicentenary) [only before noun]
 
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connected with the year, or the day, when you celebrate an important event that happened exactly 200 years earlier bicentennial celebrations