n.belief in the Christian doctrine of the millennium mentioned in the Book of Revelations
同义词：millenarismmillenniumismchiliasm
英汉双解大词典
millenarianism/ˌmɪlɪˈnɛərɪəˌnɪzəm/
1.
N（名词）
the belief in a future millennium following the Second Coming of Christ during which he will reign on earth in peace: based on Revelation 20:1–5 千禧年说; 一种基督复临并统治世界一千年的信仰，其根据是《启示录》20章的1-5节 [Christianity]