from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A star whose brightness varies because of internal changes, periodic eclipsing by a mutually orbiting star, or periodic transiting of orbiting planets or other circumstellar material.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun astronomy Any star whose brightness varies.

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

  • noun a star that varies noticeably in brightness


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