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

  • n. A polygon with eight sides and eight angles.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A polygon with eight sides and eight angles.
  • n. The arena for mixed martial arts, particularly as trademarked by the UFC.

from the GNU version of the Collaborative International Dictionary of English

  • n. A plane figure of eight sides and eight angles.
  • n. Any structure (as a fortification) or place with eight sides or angles.

from The Century Dictionary and Cyclopedia

  • n. In geometry, a figure of eight angles and eight sides. When the sides and angles are equal, it is a regular octagon.
  • n. In fortification, a work with eight bastions.
  • n. A gold coin of octagonal shape, of the value of 50 dollars, issued in 1851 by the United States assay-office in San Francisco.

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

  • n. an eight-sided polygon


Sorry, no etymologies found.



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  • can't forget doctor octagon

    December 9, 2008