unconsolidated siliceous rock formed largely from the tests of radiolarians.
| 单词 | θ6047 |
| 释义 | the world > the earth > structure of the earth > constituent materials > earth or soil > kind of earth or soil > [noun] > organic soil > radiolarian earth (1) radiolarian earth1889 unconsolidated siliceous rock formed largely from the tests of radiolarians. |
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