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dark nebula

noun, Astronomy
a cloud of interstellar gas and dust that absorbs and thus obscures the light from stars behind it, appearing as a dark patch in front of a bright nebula or in an otherwise bright area of sky.
Also called absorption nebula.
Origin of dark nebula
1930-35 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for dark nebula
Historical Examples
  • It was later, that I saw the dark nebula—at first, an impalpable cloud, away to my right.

    The House on the Borderland William Hope Hodgson
  • Upon the whole, the theory of an encounter between a star and a dark nebula seems best to fit the observations.

    Curiosities of the Sky Garrett Serviss
British Dictionary definitions for dark nebula

dark nebula

a type of nebula that is observed by its blocking of radiation from other sources See nebula
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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dark nebula in Science
dark nebula  
See absorption nebula.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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