bicentennial

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++

Related topics: Chronology

bi·cen·ten·ni·al /ˌbaɪsenˈteniəl/ noun [countable]  American EnglishTMC the day or year exactly 200 years after an important event 二百周年（纪念） the bicentennial of the Declaration of Independence 《独立宣言》发表二百周年纪念 —bicentennial adjective bicentennial celebrations 二百周年庆典

Examples from the Corpus

bicentennial• But did you know that this mechanical wonder is celebrating its bicentennial?

bi·cen·ten·ni·al nounChineseSyllable  

the 200 exactly day or years year Corpus

bicentennial
bi‧cen‧ten‧ni‧al /ˌbaɪsenˈteniəl/ noun [countable]
American English the day or year exactly 200 years after an important event:
    the bicentennial of the Declaration of Independence
—bicentennial adjective:
    bicentennial celebrations

bi·cen·ten·nialBrE /ˌbaɪsenˈteniəl/ 🔊NAmE /ˌbaɪsenˈteniəl/ 🔊 (NAmE) (BrE bi·cen·ten·ary) nounthe year, or the day, when you celebrate an important event that happened exactly 200 years earlier * 200 周年；200 周年纪念日▸ bi·cen·ten·nial adjective [only before noun] (especially NAmE) ◆bicentennial celebrations200 周年庆典