Examples from the Web for octangular
It is of an octangular shape, and the outside is adorned by tracery work.
On the North side stands a tower of an octangular form, supporting the spire.
This octangular tower stands quite by itself, and commands a magnificent and extensive view over Botany Bay.Narrative of the Circumnavigation of the Globe by the Austrian Frigate Novara, Volume III|Karl Ritter von Scherzer
Another, of the same material, is set with an octangular bloodstone, with a circular turquoise on each side.Finger-Ring Lore|William Jones
About seventy years ago, those towers were pulled down, and rebuilt in their present octangular form.