A hard and typically impermeable substratum of soil. Cf. hardpan, n. 1.
单词 | θ6110 |
释义 | the world > the earth > structure of the earth > constituent materials > earth or soil > [noun] > subsoil > hard subsoil (6) pan1667 A hard and typically impermeable substratum of soil. Cf. hardpan, n. 1. moor-band1800 a hard impervious subsoil of sand, clay, and stones, found in moorland areas. hardpan1803 A hard, excessively compacted, often clayey, soil or subsoil; a layer of this. Also: hard unbroken ground. Also figurative. moor-band pan1844 = moor-band n. moor pan1846 = moor-band n. ortstein1903 A hardpan; (now) spec. one cemented with iron and organic matter, usually in the B horizon of a podzol. |
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