reflection-nebula

reflection nebula

noun Astronomy.
a cloud of interstellar gas and dust that reflects the light of neighboring stars.
Origin:
1935–40

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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American Heritage
Science Dictionary
reflection nebula  
A nebula that reflects the light of a nearby star or stars toward Earth rather than producing its own. See more at nebula.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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00:10
Reflection-nebula is always a great word to know.
So is ninnyhammer. Does it mean:
a stew of meat, vegetables, potatoes, etc.
a fool or simpleton; ninny.
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