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1. Oxford American Dictionary

   octagonal

   • IPA[äkˈtaɡən(ə)l]

   美式

   • adj.
     having the shape or cross section of an octagon; eight-sided
2. • 釋義

   adj.

   形容詞

   • 1. having the shape or cross section of an octagon; eight-sided an octagonal tower
3. • 更多解釋

   octagonal

   • IPA[ɒkˈtaɡən(ə)l]

   英式

   • adj.
     having the shape or cross section of an octagon; eight-sided: an octagonal tower

   Oxford Dictionary