| 单词 | dark nebula |
| 释义 | dark nebulanoun 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 nebulaFirst recorded in 1930–35 Words nearby dark nebuladarkly, dark matter, dark meat, dark mineral, dark money, dark nebula, darkness, dark of the moon, dark reaction, darkroom, dark slide Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for dark nebuladark nebula nouna type of nebula that is observed by its blocking of radiation from other sourcesSee 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 Scientific definitions for dark nebuladark nebula See absorption nebula. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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