great nebula orion

Great Nebula of Orion

noun
Dictionary.com Unabridged

Orion Nebula

noun Astronomy.
a luminous nebula in the constellation Orion, in the center of Orion's sword.
Also called Great Nebula of Orion.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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