新星 xīnxīng nova Origin Definitions Defs Strokes Stroke Words Sentences Sents 超新星 chāoxīnxīng supernova A massive star that undergoes a powerful and luminous explosion at the end of its life, suddenly increasing in brightness by millions of times.中国超新星 zhōngguóchāoxīnxīng SN 1054 supernova of 1054 observed by Chinese astronomers that created the Crab Nebula