A spherical magnet, having like the earth two magnetic poles; sometimes, for experimental purposes, marked with lines representing the earth's…
| 单词 | θ78100 |
| 释义 | the world > matter > physics > electromagnetic radiation > magnetism > magnetic devices or materials > [noun] > a magnet > of specific shape (5) terrella1613 A spherical magnet, having like the earth two magnetic poles; sometimes, for experimental purposes, marked with lines representing the earth's… horseshoe magnet1785 a magnet in the shape of a bar bent until the ends nearly meet. bar magnet1821 a magnet in the form of a straight bar. U-magnet1888 attributive, in the sense ‘shaped like the letter U’, as U-bend, U bolt, U cross profile, U-frame, U-magnet, U piece, U plate, U-rail, U-section… Subcategories:— cross-piece of horse-shoe magnet (1) |
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