柯林斯詞典magnetic field (magnetic fields) 1. N-COUNT A magnetic field is an area around a magnet, or something functioning as a magnet, in which the magnet's power to attract things is felt. 磁場(chǎng) 返回 magnetic field劍橋詞典an area around a magnet or something magnetic , in which it has a force to attract objects to itself 磁場(chǎng) 返回 magnetic field