动力反应堆 dònglìfǎnyìngduī power reactor Origin Definitions Defs Strokes Stroke Words Sentences Sents 动力 動力 dònglì noun motive power The physical force used to drive machinery or make objects move, such as electricity, wind, or water power反应堆 反應堆 fǎnyìngduī reactor A device used to initiate and control a nuclear reaction to produce energy; short for 原子核反应堆 yuánzǐhéfǎnyìngduī.