from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. a spiral-shaped nebula
  • n. a spiral-shaped white nebula; these were generally determined to be spiral galaxies in the 20th century

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a galaxy having a spiral structure; arms containing younger stars spiral out from old stars at the center


spiral + nebula (Wiktionary)


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