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

  • n. A star whose brightness varies because of internal changes or periodic eclipsing of mutually revolving stars.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any star whose brightness varies.

from the GNU version of the Collaborative International Dictionary of English

  • n. a star whose brilliancy varies periodically, generally with regularity, but sometimes irregularly; -- called periodical star when its changes occur at fixed periods.

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

  • n. a star that varies noticeably in brightness


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