单词 | meteor stream |
释义 | > as lemmasmeteor stream meteor stream n. †(a) poetic a luminous flow reminiscent or suggestive of a meteor (obsolete rare); (b) Astronomy a group of meteoroids moving together in the same orbit, forming an elongated swarm along the path of the originating comet. ΘΚΠ the world > the universe > constellation > comet or meteor > meteor > [noun] > shower meteor stream1810 star showera1822 meteor current1870 1810 L. Aikin Epist. Women 75 Blest orb, that flashed on Spenser's dazzling sight Long meteor-streams and trails of fairy-light. 1877 G. F. Chambers Handbk. Descr. Astron. (ed. 3) x. ii. 835 The incalculable number of meteor-streams that must exist in the solar system. 1959 A. N. Spitz & F. Gaynor Dict. Astron. 251 They [sc. the meteors in a swarm] are usually strung out considerably along their orbits, and are referred to as a meteor stream. 1992 S. P. Maran Astron. & Astrophysics Encycl. 30/2 In some respects meteor streams could be thought of as ‘cometary families’, because meteoric material comes from the gradual disintegration of comets. < as lemmas |
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