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Dictionary

dark' neb'ula

Astron.
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.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

dark mineral

darkness

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