柯林斯詞典ferromagnetism /?f?r???m?ɡn??t?z?m/ 1. N the phenomenon exhibited by substances, such as iron, that have relative permeabilities much greater than unity and increasing magnetization with applied magnetizing field. Certain of these substances retain their magnetization in the absence of the applied field. The effect is caused by the alignment of electron spin in regions called domains 鐵磁性→compare diamagnetism , paramagnetism 返回 ferromagnetism劍橋詞典the type of magnetism (= the force that makes certain objects move towards it) that iron has 強(qiáng)磁性，鐵磁性 返回 ferromagnetism