- having eight angles and eight sides.
Origin of octagonal
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for octagonal
Over the octagonal window, too, such draperies fell in stately lines.
He sprang to the octagonal window, even as Dick took possession of the pistol.
The drum dome is octagonal, with eight ribs and as many windows.Byzantine Churches in Constantinople
Alexander Van Millingen
On the other sides of the octagonal pavilion the other assistants are busy "closing up."Against Odds
Lawrence L. Lynch
They are all round, though one belongs to an octagonal shaft.Portuguese Architecture
Walter Crum Watson
- having eight sides and eight angles
- of or relating to an octagon
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for octagonal
Online Etymology Dictionary, © 2010 Douglas Harper
- A polygon having eight sides.
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