| 单词 | ball lightning |
| 释义 | > as lemmasball lightning ball lightning n. a natural electrical phenomenon of unknown cause characterized by the appearance of one or (occasionally) more brightly glowing globular or ellipsoidal objects floating or hovering in the air for several seconds, typically reported in association with thunderstorms. ΘΚΠ the world > matter > light > naturally occurring light > [noun] > lightning > bead or forked lightning > globular fireball1611 thunder-ball1686 globular lightning1843 ball lightning1846 ball of fire1900 1846 D. Lardner Pop. Lect. Sci. & Art I. 550 Of all the forms under which the results of electrical explosions in the air present themselves, the most inexplicable is that of ball-lightning. 1930 Discovery Dec. 391/2 Ball lightning is probably the most interesting form of lightning discharge. 2002 Sci. News 9 Feb. 87/2 Of the many scientific theories of ball lightning, most depict the phenomenon as some kind of plasma, or hot gas of electrons and positively charged atomic or molecular ions. < as lemmas |
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