柯林斯詞典magnesium /m?ɡ?ni?z??m/ 1. N-UNCOUNT Magnesium is a light, silvery white metal which burns with a bright white flame. 鎂 返回 magnesium劍橋詞典a chemical element that is a silver-white metal . Magnesium burns very brightly and is used in making fireworks . （化學(xué)元素）鎂 返回 magnesium