nova
nova
[ˈnəʊvə]
(pl. novae -viː 或 novas)
[ˈnəʊvə]
(pl. novae -viː 或 novas)
- (Astronomy)a star showing a sudden large increase in brightness and then slowly returning to its original state over a few months
(天文)新星。 参见 supernova - Novae are believed to occur in binary star systems. Material falling from a companion star to the surface of a white dwarf collects over a long period, increasing in density and temperature, until there is a sudden runaway thermonuclear reaction which blasts much of the accumulated material into space. Novae are often visible in small telescopes, and sometimes to the naked eye
- late 19th cent.: from Latin, feminine of novus 'new' (because such stars were thought to be newly formed)
热门查询
- sensorium n.感觉中枢，感觉器官
- sensory adj.感觉的，感受的，感官的,传递感觉的
- sensual adj.感觉的,肉欲的，肉体上的,色情的，淫荡的,世俗的
- sensualise vt.<主英>使变成好色，使耽溺于肉欲
- sensualism n.耽于声色，肉欲主义，<哲>感觉论
- sensualist n.耽于声色的人，肉欲主义者，<哲>感觉论者
- sensuality n.耽于声色，好色，淫荡
- sensualize vt.使变成好色，使耽溺于肉欲
- sensually adv.耽于声色地,好色地,淫荡地,官能地
- sensum n.感觉材料
- sensuous adj.感觉（上）的,感官的,（引起）美感的
- sensuously adv.感觉上
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