2. Any structure (as a fortification) or place with eight
sides or angles.
[1913 Webster]
{Regular octagon}, one in which the sides are all equal, and the angles also are all equal. [1913 Webster]
The Collaborative International Dictionary of English. 2000.
Octagon — Oc ta*gon, n. [Gr. ? eight cornered; okta (for oktw eight) + ? an angle: cf. F. cctogone.] 1. (Geom.) A plane figure of eight sides and eight angles. [1913 Webster] 2. Any structure (as a fortification) or place with eight sides or angles. [1913… … The Collaborative International Dictionary of English
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