a local deviation from the general pattern of the earth's magnetic field.
| 单词 | θ78075 |
| 释义 | the world > matter > physics > electromagnetic radiation > magnetism > earth magnetism > [noun] > local variation (4) magnetic anomaly1899 a local deviation from the general pattern of the earth's magnetic field. magnetic variation1937 Geology and Meteorology. A change (over time or space) in the earth's magnetic field. Subcategories:— parts of (2) |
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