bi·cen·te·na·ry /ˌbaɪsenˈtiːnəri $ -ˈtenəri, -ˈsentəneri/ noun (plural bicentenaries) [countableC] especially British EnglishBrETMC the day or year exactly 200 years after an important event 二百周年(纪念) → centenarybicentenary of the bicentenary of Mozart’s death 莫扎特逝世二百周年纪念
—bicentenary adjectiveadj [only before noun]