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cosmic dust

noun, Astronomy
fine particles of matter in space.
Origin of cosmic dust
1880-85 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for cosmic dust
  • The gas circles through space in cosmic dust clouds called nebulae.
  • Also called cosmic dust or space dust gas: noun: state of matter with no fixed shape that will fill any container uniformly.
  • They still have a lot of their original components-fine grains, specs of cosmic dust, and little molten droplets.
  • Start worrying in a few million years about a cosmic dust collision, when the sun hits the closest spiral arm of our galaxy.
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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