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单词 meteor dust
释义

Definition of meteor dust in English:

meteor dust

noun
Astronomy
  • 1Fine meteoroid particles in interplanetary space.

  • 2Fine particles of meteoric origin in the earth's atmosphere or on the earth's surface.

Origin

Mid 19th century; earliest use found in William Thomson (1819–1890), archbishop of York.

Definition of meteor dust in US English:

meteor dust

noun
Astronomy
  • 1Fine meteoroid particles in interplanetary space.

  • 2Fine particles of meteoric origin in the earth's atmosphere or on the earth's surface.

Origin

Mid 19th century; earliest use found in William Thomson (1819–1890), archbishop of York.

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