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cosmic dust

noun, Astronomy.
fine particles of matter in space.
Origin of cosmic dust
First recorded in 1880-85 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for cosmic dust
Historical Examples
  • Perhaps we ran into a cloud of cosmic dust that intercepted the Sun's rays.

  • Sixty brave men were dancing motes of cosmic dust before the shocked commander could sound the recall.

    When the Sleepers Woke Arthur Leo Zagat
  • They might be actual monuments, defaced by cosmic dust, by collision with the myriad fragments of the Belt, by time.

    The Legion of Lazarus Edmond Hamilton
  • Then he was floating in what felt like waves of cosmic dust, swirling many-colored before his eyes.

    The Colors of Space Marion Zimmer Bradley
  • The cosmic dust was brighter out here, and the constellations looked a little flattened.

    The Colors of Space Marion Zimmer Bradley
  • The clouds of cosmic dust swirled and foamed around the familiar jewels of his own sky.

    The Colors of Space Marion Zimmer Bradley
  • The precise nature of this cosmic dust—whether it was gas, meteorites and gas, or other particles—is open to question.

    The Story of Evolution Joseph McCabe
  • The stars and their planets are enormous aggregations of cosmic dust, swept together and compressed by the action of gravitation.

    The Story of Evolution Joseph McCabe
  • The more important question is: How do astronomers conceive the condensation of this mixed mass of cosmic dust?

    The Story of Evolution Joseph McCabe
  • Now haven't I as much right to light on Earth as on any other bit of cosmic dust?

    On the Lightship Herman Knickerbocker Viel
British Dictionary definitions for cosmic dust

cosmic dust

fine particles of solid matter occurring throughout interstellar space and often collecting into clouds of extremely low density See also nebula (sense 1)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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