A nodule (of limestone, ironstone, etc.) having the form of a flattened sphere appearing in cross-section to be divided by septa or cracks typically…
| 单词 | θ4807 |
| 释义 | the world > the earth > structure of the earth > structural features > vein > [noun] > septal arrangement (1) septarium1788 A nodule (of limestone, ironstone, etc.) having the form of a flattened sphere appearing in cross-section to be divided by septa or cracks typically… |
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