单词 | meteor dust |
释义 | > as lemmasmeteor dust meteor dust n. Astronomy (a) fine meteoroid particles in interplanetary space; (b) fine particles of meteoric origin in the earth's atmosphere or on the earth's surface. ΘΚΠ the world > the universe > diffused matter > [noun] > cosmic dust stardust1841 stardust1867 meteor dust1868 cosmic dust1876 1868 W. Thomson in Trans. Geol. Soc. Glasgow 3 28 A layer of meteor-dust accumulating at the rate of..1 foot in 4,000 years, would suffice to explain Adams and Delaunay's result. 1895 J. B. L. Warren Poems, Dramatic & Lyrical 2nd Ser. 113 Thy train is meteor dust, thy forehead crested With blue-gold beacon glare. 1956 Nature 14 Jan. 83/1 The question of whether there is a relationship between the concentration of freezing nuclei [at high altitudes], meteor dust and the weather. 1971 Meteoritics 6 127 The [meteorite] matter was represented in three forms: as meteor dust (magnetic globules—product of ablation), as meteorite dust (tiniest meteorite particles—product of splitting) and as micrometeorites. < as lemmas |
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