| 单词 | supernova |
| 释义 | supernova /sooh'peuhr noh"veuh/, n. , pl. supernovas, supernovae /-vee/. Astron. 1. the explosion of a star, possibly caused by gravitational collapse, during which the star's luminosity increases by as much as 20 magnitudes and most of the star's mass is blown away at very high velocity, sometimes leaving behind an extremely dense core. 2. the star undergoing such an explosion. Cf. supernova remnant, black hole, neutron star, nova. [1925-30; SUPER- + NOVA] |
| 随便看 |
|
英语词典包含168451条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。