reflection nebula


noun Astronomy.

a cloud of interstellar gas and dust that reflects the light of neighboring stars.

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Origin of reflection nebula

First recorded in 1935–40
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Scientific definitions for reflection nebula

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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.