柯林斯词典nova /ˈnəʊvə/ 1. N a variable star that undergoes a cataclysmic eruption, observed as a sudden large increase in brightness with a subsequent decline over months or years; it is a close binary system with one component a white dwarf 新星→compare supernova 返回 nova剑桥词典a type of star that shines much more brightly for a few months as a result of a nuclear explosion 新星（一類由於核爆炸而在數月之內異常明亮的恒星） 返回 nova