erosion by a stream of its bed in the upstream direction, so that a valley, ravine, etc., becomes longer.
| 单词 | θ5250 |
| 释义 | the world > the earth > structure of the earth > formation of features > erosion or weathering > [noun] > headward erosion (4) headward erosion1895 erosion by a stream of its bed in the upstream direction, so that a valley, ravine, etc., becomes longer. Subcategories:— capture (3) |
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