spiral nebula

English

Noun

spiral nebula (plural spiral nebulas or spiral nebulae)

  1. (astronomy) a spiral-shaped nebula
  2. (astronomy, obsolete) a spiral-shaped white nebula; these were generally determined to be spiral galaxies in the 20th century
This article is issued from Wiktionary. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.