1.1An object or building with an octagonal plan or cross section.
- The house is formed of four octagons and no rectangular shapes or flat walls.
- The octagon is formed by a kind of train-track motif that jogs around a flower-blossom design.
- Only a handful of gunsmiths have the ability to cut a tapered octagon barrel.
Late 16th century: via Latin from Greek octagōnos 'eight-angled'.
Definition of octagon in:
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