| 单词 | stone-head |
| 释义 | > as lemmasstone-head stone-head n. the top of the stratum of solid stone or bed-rock beneath the loose or soft superficial deposit; also = stone-heading n. ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > [noun] > bedrock shelf1671 stone-head1708 rock1719 rock bed1794 rock-bottom1797 rock-head1820 bed-rock1850 reef1869 1708 J. C. Compl. Collier 4 in T. Nourse Mistery of Husbandry Discover'd (ed. 3) To dig till we sink down to the Stone head. 1883 W. S. Gresley Gloss. Terms Coal Mining 242 Stone-head. 1. A heading driven in stone. 2. (N.) The first hard stratum met with underlying quicksand. < as lemmas |
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