from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of a class of highly luminous, exceptionally massive stars.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A star that has stopped fusing hydrogen in its core and as a result has grown much larger and brighter.

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

  • n. a very bright star of large diameter and low density (relative to the Sun)


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