| 单词 | bimillennium | 
| 释义 | bimillennium in British English (ˌbaɪmɪˈlɛnɪəm) noun a period of two thousand years bimillennium in American English (ˌbaimɪˈleniəm) nounWord forms: plural -lenniums or -lennia (-ˈleniə)Also: bimillenary, bimillennial 1.  a period of two thousand years 2.  a two thousandth anniversary Word origin[bi-1 + millennium]bi- is a combining form meaning “twice,” “two,” used in the formation of compound words.Other words that use the affix bi- include: biceps, bilabial, bilateral, bilingual, bivalent | 
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