Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A polygon with eight sides and eight angles.
from The Century Dictionary.
- noun A gold coin of octagonal shape, of the value of 50 dollars, issued in 1851 by the United States assay-office in San Francisco.
- noun In geometry, a figure of eight angles and eight sides. When the sides and angles are equal, it is a regular octagon.
- noun In fortification, a work with eight bastions.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Geom.) A plane figure of eight sides and eight angles.
- noun Any structure (as a fortification) or place with eight sides or angles.
- noun one in which the sides are all equal, and the angles also are all equal.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun geometry A
polygon with eight sides and eight angles. - noun martial arts, usually capitalized The
arena formixed martial arts , particularly as trademarked by the UFC.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun an eight-sided polygon
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
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Examples
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The octagon was a room perhaps one hundred feet across and thirty feet high.
Katherine Neville "The Fire" Jan 2008
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The octagon was a room perhaps one hundred feet across and thirty feet high.
Archive 2008-10-01 Jan 2008
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The octagon is an eight-sided figure, the intervening shape between the circle and the square.
A Handbook of Symbols in Christian Art Gertrude Grace Sill 1975
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The octagon is an eight-sided figure, the intervening shape between the circle and the square.
A Handbook of Symbols in Christian Art Gertrude Grace Sill 1975
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The reason why it was called by this name was, that the principal sitting-room in the house was built in the form of an octagon, that is, instead of having four sides, as a room usually has, this room had eight sides.
The Atlantic Monthly, Volume 05, No. 28, February, 1860 Various
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Fergusson has pointed out that the roof of the octagon is the only Gothic dome in existence.
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Watching he and Coleman sloshing around the octagon is a joke.
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Brendhan pointed out a majority of the talent at 205 lbs. resides within the UFC, but there's one man who doesn't call the octagon his home and that man is
Five Ounces of Pain 2010
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These are placed at the intersection of a system of semicircles, of which the sixteen columns on the sides of the octagon are the centres.
The Notebooks of Leonardo Da Vinci — Complete 1452-1519 Leonardo da Vinci 1485
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These are placed at the intersection of a system of semicircles, of which the sixteen columns on the sides of the octagon are the centres.
The Notebooks of Leonardo Da Vinci — Volume 2 1452-1519 Leonardo da Vinci 1485
mmaaatttt commented on the word octagon
can't forget doctor octagon
December 9, 2008