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cosmic dust

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noun Astronomy.

fine particles of matter in space.

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Nearby words

cosmetize, cosmetologist, cosmetology, cosmic, cosmic background radiation, cosmic dust, cosmic microwave background, cosmic noise, cosmic ray, cosmic rays, cosmic string

Origin of cosmic dust

First recorded in 1880–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for cosmic dust

cosmic dust


noun

fine particles of solid matter occurring throughout interstellar space and often collecting into clouds of extremely low densitySee also nebula (def. 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