Protruding bedrock surrounding a gravel deposit or placer. Now rare.
单词 | θ5784 |
释义 | the world > the earth > structure of the earth > constituent materials > rock > [noun] > rim-rock (3) rimrock1856 Protruding bedrock surrounding a gravel deposit or placer. Now rare. rim1869 U.S. = rimrock, n. 1 2. rimrock1898 In singular and (rare) plural. Rock at the edge of a plateau or other elevated feature, esp. when forming a cliff or precipice at the side of a… |
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