What is the meaning of spiral nebula?

noun

  • A galaxy having a spiral structure; arms containing younger stars spiral out from old stars at the center.
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). spiral nebula. Retrieved September 20, 2026, from http://smartdefine.org/spiral_nebula/definitions/1312359
ChicagoWordNet. 2010. "spiral nebula" http://smartdefine.org/spiral_nebula/definitions/1312359 (accessed September 20, 2026).
HarvardWordNet 2010, spiral nebula, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/spiral_nebula/definitions/1312359>.
MLAWordNet. "spiral nebula" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/spiral_nebula/definitions/1312359>