热核反应 rèhéfǎnyìng thermonuclear reaction Origin Definitions Defs Strokes Stroke Words Sentences Sents 热核 熱核 rèhé thermonuclear thermonuclear; relating to or using nuclear reactions that occur only at very high temperatures反应 反應 fǎnyìng nounverb chemical reaction a process in which substances undergo chemical or physical change