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1. Oxford American Dictionary

   octahedron

   • IPA[ˌäktəˈhēdrən]

   美式

   • n.
     a three-dimensional shape having eight plane faces, especially a regular solid figure with eight equal triangular faces.；a body, especially a crystal, in the form of a regular octahedron.

   • noun: octahedron, plural noun: octahedra

2. • 更多解釋

   octahedron

   • IPA[ˌɒktəˈhiːdrən]

   英式

   • n.
     a three-dimensional shape having eight plane faces, especially a regular solid figure with ...

   Oxford Dictionary