| 单词 | lightning tube |
| 释义 | > as lemmaslightning tube lightning tube n. Geology an elongated or tubular piece of glassy material formed of sand or other sediment fused by lightning; a fulgurite (fulgurite n. 1). [After German Blitzröhre (K. G. Fiedler 1817, in Ann. der Physik 55 121).] ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > formed by lightning fulgurite1823 lightning stone1823 lightning tube1824 lightning bone1832 lightning rod1892 1824 tr. K. G. Fiedler in Chemist 27 Mar. 42/1 I set out, examining the neighbourhood in search of a vitreous-sand, or lightning-tube. 1946 G. W. Stimpson Bk. about Thousand Things 253 Sand hills unprotected by vegetation are constantly shifting and not infrequently petrified lightning tubes are left projecting several feet above the surface. 1996 Atoll Res. Bull. (Smithsonian Inst.) No. 432. 37 These tubes, stacked in sand, often reach the length of several meters... They could not be lightning tubes since the sand kernels are not melted together. < as lemmas |
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